organo-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.

Origin: A borrowing from Greek. Etymons: Greek ὀργανο-, ὄργανον.

Etymology: < Hellenistic Greek ὀργανο-, combining form (in e.g. ὀργανοποιία instrument-making, apparatus, structure) of ancient Greek ὄργανον organ n.¹; compare -o- connective. Compare post-classical Latin organo- (1559 in organographia: see below), French organo- (formations in which are found from at least the early 19th cent.).Rare before the early 19th cent. Earliest in organography n. (1559; an apparent loan from post-classical Latin), and in the isolated formation organopoietical (1664). The earliest independent English formations are apparently organography n. in sense 2 (1806), organology n. (1814). In many compounds a secondary stress may be given as ˌorgano- or orˌgano-.

1. Forming terms with the senses ‘of body organs’, ‘of organic matter’, and (rarely) ‘of instruments, esp. musical instruments’.

organomegaly n.

Brit.

/ɔːˌɡanə(ʊ)ˈmɛɡəli/

/ɔːˌɡanə(ʊ)ˈmɛɡl̩i/

/ˌɔːɡənə(ʊ)ˈmɛɡəli/

/ˌɔːɡənə(ʊ)ˈmɛɡl̩i/

/ˌɔːɡn̩ə(ʊ)ˈmɛɡəli/

/ˌɔːɡn̩ə(ʊ)ˈmɛɡl̩i/

U.S.

/ˌɔrɡənoʊˈmɛɡəli/

/ɔrˌɡænoʊˈmɛɡəli/

Medicine abnormal enlargement of one or more organs of the body (esp. the spleen or liver).

ΚΠ

1968 New Eng. Jrnl. Med. 28 Mar. 693/2 The clinical features of acral growth and organomegaly are relatively imprecise and subject to alteration from various causes.

1987 N. J. Smith & C. L. Stanitski Sports Med. i. 4 Organomegaly may be a disqualifying condition for those in collision sports.

2003 Amer. Jrnl. Med. 114 506 His abdomen was thin, nontender, and without masses or organomegaly.

† organomorphic adj. [after anthropomorphic adj.] Obsolete (perhaps) taking the form, or representing as, an instrument, tool, or means.Apparently an isolated use.

ΚΠ

1886 Kernel & Husk 62 Some metaphors..which describe Him [sc. God] by reference to implements (such as a shield) may be called organomorphic.

† organophone n. Music Obsolete a harmonium invented by Alexandre-François Debain, having the reeds or vibrators within rather than below the air channels.

ΘΚΠ

society > leisure > the arts > music > musical instrument > other musical instruments > [noun] > others

coriunc1275

symphonyc1290

symphan1303

minstrelsyc1390

bougounc1400

clokarde?c1475

dulsacordisa1525

symphioun1578

sumphion?1590

clasher1621

orphion1658

polyphone1684

roundball1688

phonomime1834

orchestrion1838

sabbeka1844

bullroarer1848

creaker1855

melodikon1857

symphonia1864

organophone1880

magnetophone1883

Kaffir piano1897

jazzophone1926

mouth bow1932

wobbleboard1960

singing bowl1980

1880 Advt. for Debain & Co. in N.E.D. (1903) at Organo- Organophone. (Debain, Inventor.) A close imitation of the brilliant and broad effects produced by a well-balanced pipe organ.

1881 Times 4 Apr. 15/4 (advt.) Superior modern organophone by De Baine.

† organophonic adj. [ < organo- comb. form + -phonic comb. form] Obsolete designating a band of musicians who imitate the instruments of the orchestra with the voice.

ΘΚΠ

society > leisure > the arts > music > musician > singer > company of singers > [adjective] > type of

organophonic1852

1852 Times 28 Sept. 7/2 The ‘Organophonic Band’, who, without instruments, can, by voice alone, imitate all the brass, wood, and catgut in a regular orchestra.

1890 Stratford-on-Avon Herald 19 Dec. 8/1 He joined an organophonic band which travelled throughout the district, and gave variety entertainments.

† organoplastic adj. [ < organo- comb. form + -plastic comb. form, after French organoplastique (1849 or earlier)] Biology Obsolete involved in or responsible for the formation of organs.

ΘΚΠ

the world > life > the body > system > [adjective] > organ > formation of

organopoietical1664

organogenic1852

organogenetic1854

organoplastic1855

1855 Philos. Trans. (Royal Soc.) 145 244 Between the seventh and eighth days the ‘organo-plastic globules’ undergo a considerable diminution.

1864 Webster's Amer. Dict. Eng. Lang. Organoplastic.

1879 tr. A. de Quatrefages de Bréau Human Species (ed. 3) xi. 122 Under the influence of the organo~plastic [Fr. organo-plastique] or evolutive force there were formed proto-organisms of a very simple structure.

† organoplasty n. [ < organo- comb. form + -plasty comb. form, after French organoplastie (H.-L. Roger-Collard 1842)] Biology Obsolete the formation or development of body organs.

ΘΚΠ

the world > life > the body > system > [noun] > organ > formation of

organogeny1844

organogenesis1865

organoplasty1892

1892 New Sydenham Soc. Lexicon at Organoplasty HygienicOrganoplasty, Roger-Collard's term for the art of developing organs by appropriate exercise of them.

† organopoietical adj. [ < organo- comb. form + ancient Greek ποιητικός poietic adj. + -al suffix¹; compare Byzantine Greek ὀργανοποιεῖν to provide with organs, Hellenistic Greek ὀργανοποιικά manufacture of war engines] Obsolete rare = organoplastic adj.

ΚΠ

1664 H. Power Exper. Philos. i. 71 The Soul is in full exercise of her Plastick and Organo-Poïetical Faculty.

† organoscopy n. [ < organo- comb. form + -scopy comb. form; compare French organoscopie (1823)] Obsolete examination of organs of the body; spec. cranioscopy or phrenology.

ΘΚΠ

the mind > mental capacity > psychology > faculty psychology > psychological study of the skull > [noun]

cranioscopy1804

craniology1806

craniognosy1810

craniognomy1813

organology1814

phrenology1815

zoonomy1815

bumpology1822

turnipology1824

organoscopy1864

the world > health and disease > healing > diagnosis or prognosis > examination > [noun] > by physical means > of specific parts or using specific instruments

abdominoscopy1826

stethoscopy1853

haematoscopy1854

laparoscopy1855

autolaryngoscopy1860

autoscopy1861

laryngoscopy1861

pharyngoscopy1861

rhinoscopy1861

organoscopy1864

oesophagoscopy1872

otoscopy1874

endoscopy1879

tracheoscopy1880

gastroscopy1888

thoracoscopy1890

proctoscopy1896

rectoscopy1897

sigmoidoscopy1900

bronchoscopy1903

cystoscopy1908

peritoneoscopy1935

toposcopy1950

mediastinoscopy1959

sonogram1978

1864 Webster's Amer. Dict. Eng. Lang. Organoscopy,..phrenology.

1892 New Sydenham Soc. Lexicon Organoscopy, the examination of the several organs of the body in order to form an opinion concerning the..faculties..and other endowments of the person. Also, a synonym of Cranioscopy.

organosedimentary adj.

Brit.

/ɔːˌɡanə(ʊ)sɛdᵻˈmɛnt(ə)ri/

/ˌɔːɡənə(ʊ)sɛdᵻˈmɛnt(ə)ri/

/ˌɔːɡn̩ə(ʊ)sɛdᵻˈmɛnt(ə)ri/

U.S.

/ˌɔrɡənoʊˌsɛdəˈmɛn(t)əri/

/ɔrˌɡænoʊˌsɛdəˈmɛn(t)əri/

Geology relating to or designating structures (such as stromatolites) produced by a combination of sedimentation and biological processes.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [adjective]

sedimentary1830

sedimental1883

organosedimentary1964

1964 Jrnl. Geol. (Chicago) 72 81/2 Algal stromatolites are laminated organosedimentary structures formed by the activity of algal mats in binding fine particulate sediment.

1972 Jrnl. Geol. (Chicago) 80 592/1 ‘Molar tooth’ structure..most likely resulted from organosedimentary processes similar to those forming algal stromatolites.

2000 Nature 5 Oct. 626/2 Microbialites are organosedimentary structures that can be constructed by a variety of metabolically distinct taxa.

2. Chemistry.

a. Prefixed to the names of elements to form adjectives (often also used as nouns) denoting compounds in which an atom of the element is bonded directly to one or more organic groups. See also organochlorine adj. and n., organophosphorus adj.

organoaluminium adj.

Brit.

/ɔːˌɡanəʊal(j)ᵿˈmɪnɪəm/

/ˌɔːɡənəʊal(j)ᵿˈmɪnɪəm/

/ˌɔːɡn̩əʊal(j)ᵿˈmɪnɪəm/

U.S.

/ˌɔrɡənoʊˌæləˈmɪniəm/

/ɔrˌɡænoʊˌæləˈmɪniəm/

(also organo-aluminum)

ΚΠ

1925 Chem. Abstr. 19 238 (heading) The organoaluminium compounds; ethyl diiodide and diethyl iodide of aluminium.

1988 F. A. Cotton & G. Wilkinson Adv. Inorg. Chem. (ed. 5) vii. 224 All organoaluminums are sensitive to air and to water.

organo-boron adj.

Brit.

/ɔːˌɡanə(ʊ)ˈbɔːrɒn/

/ˌɔːɡənə(ʊ)ˈbɔːrɒn/

/ˌɔːɡn̩ə(ʊ)ˈbɔːrɒn/

U.S.

/ˌɔrɡənoʊˈbɔˌrɑn/

/ɔrˌɡænoʊˈbɔˌrɑn/

ΚΠ

1873 Proc. Royal Soc. 22 19 Dr. Frankland, Researches on Organo-Boron Compounds.

1990 New Scientist 8 Sept. 39/1 Hawthorne and his colleagues prepared VFC by treating an organoboron compound, known as closo-1.8-dicarborane, with 4-carbonethoxypyrazole.

organo-lead adj.

Brit.

/ɔːˌɡanəʊˈlɛd/

/ˌɔːɡənəʊˈlɛd/

/ˌɔːɡn̩əʊˈlɛd/

U.S.

/ˌɔrɡənoʊˈlɛd/

/ɔrˌɡænoʊˈlɛd/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds

hydrocyanic1819

organo-zinc1855

organo-mercury1860

organo-lead1861

organo-tin1866

organo-magnesium1901

organo-lithium1932

organo-silicon1941

organophosphorus1950

organophosphorous1958

1861 Q. Jrnl. Chem. Soc. 13 228 Organo-lead compounds are arranged under the types of sesquioxide and peroxide of lead.

1974 Physics Bull. May 180/1 Lead alkyl petrol additives provide virtually the only source of organolead compounds in the environment.

organo-lithium adj.

Brit.

/ɔːˌɡanə(ʊ)ˈlɪθɪəm/

/ˌɔːɡənə(ʊ)ˈlɪθɪəm/

/ˌɔːɡn̩ə(ʊ)ˈlɪθɪəm/

U.S.

/ˌɔrɡənoʊˈlɪθiəm/

/ɔrˌɡænoʊˈlɪθiəm/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds

hydrocyanic1819

organo-zinc1855

organo-mercury1860

organo-lead1861

organo-tin1866

organo-magnesium1901

organo-lithium1932

organo-silicon1941

organophosphorus1950

organophosphorous1958

1932 Jrnl. Amer. Chem. Soc. 54 1957 It is possible to prepare many organolithium compounds by the direct interaction of lithium with an RX compound in ether or benzene.

1974 Chem. & Pharmaceut. Bull. (Tokyo) 22 1711 Many reports have been published so far on the reactions between organolithiums and open chain compounds.

organo-magnesium adj.

Brit.

/ɔːˌɡanə(ʊ)maɡˈniːzɪəm/

/ˌɔːɡənə(ʊ)maɡˈniːzɪəm/

/ˌɔːɡn̩ə(ʊ)maɡˈniːzɪəm/

U.S.

/ˌɔrɡənoʊˌmæɡˈniziəm/

/ɔrˌɡænoʊˌmæɡˈniziəm/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds

hydrocyanic1819

organo-zinc1855

organo-mercury1860

organo-lead1861

organo-tin1866

organo-magnesium1901

organo-lithium1932

organo-silicon1941

organophosphorus1950

organophosphorous1958

1901 Jrnl. Chem. Soc. 80 i. 263 The organo-magnesium compound produced crystallises in colourless, flattened needles.

1968 R. O. C. Norman Princ. Org. Synthesis vi. 202 Organomagnesium compounds, known as Grignard reagents after their discoverer, are the most widely used of organometallic reagents.

organo-mercury adj.

Brit.

/ɔːˌɡanə(ʊ)ˈməːkjᵿri/

/ˌɔːɡənə(ʊ)ˈməːkjᵿri/

/ˌɔːɡn̩ə(ʊ)ˈməːkjᵿri/

U.S.

/ˌɔrɡənoʊˈmərkjəri/

/ɔrˌɡænoʊˈmərkjəri/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds

hydrocyanic1819

organo-zinc1855

organo-mercury1860

organo-lead1861

organo-tin1866

organo-magnesium1901

organo-lithium1932

organo-silicon1941

organophosphorus1950

organophosphorous1958

1860 Chem. News 30 June 26/1 At present the representatives of the organo-mercury series all belong to the mercuric type.

1988 Nature 29 Sept. 464/1 Not least of the stimulants to this research were the disasters, such as that at Minamata, caused by pollution from organomercury compounds.

organo-silicon adj.

Brit.

/ɔːˌɡanə(ʊ)ˈsɪlᵻk(ə)n/

/ˌɔːɡənə(ʊ)ˈsɪlᵻk(ə)n/

/ˌɔːɡn̩ə(ʊ)ˈsɪlᵻk(ə)n/

U.S.

/ˌɔrɡənoʊˈsɪləˌkɑn/

/ˌɔrɡənoʊˈsɪlᵻkən/

/ɔrˌɡænoʊˈsɪləˌkɑn/

/ɔrˌɡænoʊˈsɪlᵻkən/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds

hydrocyanic1819

organo-zinc1855

organo-mercury1860

organo-lead1861

organo-tin1866

organo-magnesium1901

organo-lithium1932

organo-silicon1941

organophosphorus1950

organophosphorous1958

1941 Jrnl. Amer. Chem. Soc. 63 1194/1 The lack of a clear understanding of the behavior of the substituted organo-silicon compounds..led to an investigation of some of the disubstituted compounds.

1992 Quality Mag. (ICI Chemicals & Polymers) (BNC) Summer 4 The company was founded in 1943 when Corning glass works teamed its organo-silicon research with Dow Chemical Company's experience in manufacturing chemicals.

organo-tin adj.

Brit.

/ɔːˌɡanəʊˈtɪn/

/ˌɔːɡənəʊˈtɪn/

/ˌɔːɡn̩əʊˈtɪn/

U.S.

/ˌɔrɡənoʊˈtɪn/

/ɔrˌɡænoʊˈtɪn/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds

hydrocyanic1819

organo-zinc1855

organo-mercury1860

organo-lead1861

organo-tin1866

organo-magnesium1901

organo-lithium1932

organo-silicon1941

organophosphorus1950

organophosphorous1958

1866 H. Watts Dict. Chem. IV. 220 No organo-tin compounds containing only one equivalent of positive radicle, have hitherto been produced.

1988 E. Wood et al. Sea Life Brit. & Ireland 198 Organotin compounds..are used in antifouling paints on boat hulls and in treating fish farm nets.

organo-zinc adj.

Brit.

/ɔːˌɡanəʊˈzɪŋk/

/ˌɔːɡənəʊˈzɪŋk/

/ˌɔːɡn̩əʊˈzɪŋk/

U.S.

/ˌɔrɡənoʊˈzɪŋk/

/ɔrˌɡænoʊˈzɪŋk/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds

hydrocyanic1819

organo-zinc1855

organo-mercury1860

organo-lead1861

organo-tin1866

organo-magnesium1901

organo-lithium1932

organo-silicon1941

organophosphorus1950

organophosphorous1958

1855 Philos. Trans. (Royal Soc.) 145 260 The second digester is made of wrought copper and is of smaller dimensions, being especially designed for the preparation of large quantities of organo-zinc compounds.

1988 F. A. Cotton & G. Wilkinson Adv. Inorg. Chem. (ed. 5) xvi. 616 Organozinc compounds are historically important because they were the first organometallic compounds to be prepared.

organo-halogen adj.

Brit.

/ɔːˌɡanə(ʊ)ˈhalədʒ(ə)n/

/ˌɔːɡənə(ʊ)ˈhalədʒ(ə)n/

/ˌɔːɡn̩ə(ʊ)ˈhalədʒ(ə)n/

U.S.

/ˌɔrɡənoʊˈhælədʒən/

/ɔrˌɡænoʊˈhælədʒən/

ΚΠ

1962 Talanta 9 745 The fundamental nature of the differences between organofluorine compounds and other organohalogen compounds came to be generally appreciated.

1977 Offshore Engineer May 29/1 The real villains on the ‘blacklist’ are certain organohalogens (for example the extremely toxic and readily absorbed printing by-product PCB), mercury and cadmium.

(a) Prefixed to words denoting types of compound to form adjectives and nouns indicating the presence of organic groups; see also organochloride n., organophosphate n.

organoalkali adj.

Brit.

/ɔːˌɡanəʊˈalkəlʌɪ/

/ˌɔːɡənəʊˈalkəlʌɪ/

/ˌɔːɡn̩əʊˈalkəlʌɪ/

U.S.

/ˌɔrɡənoʊˈælkəˌlaɪ/

/ɔrˌɡænoʊˈælkəˌlaɪ/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic compounds > [noun] > by constituent molecules

acetylide1863

oxime1883

osone1889

oximide1893

organoalkali1932

ylid1951

phenolic1956

organo-borane1957

plastoquinone1958

nitrene1960

tetrahedrane1964

1932 Jrnl. Amer. Chem. Soc. 54 1958 A corresponding simpler technique might be used with organoalkali compounds like phenyl-lithium.

1968 G. E. Coates et al. Princ. Organometallic Chem. iii. 34 A large class of charge-delocalized organoalkali compounds consists of the addition compounds between alkali metals and bi- or poly-nuclear aromatic hydrocarbons.

organo-borane n.

Brit.

/ɔːˌɡanə(ʊ)ˈbɔːreɪn/

/ˌɔːɡənə(ʊ)ˈbɔːreɪn/

/ˌɔːɡn̩ə(ʊ)ˈbɔːreɪn/

U.S.

/ˌɔrɡənoʊˈbɔˌreɪn/

/ɔrˌɡænoʊˈbɔˌreɪn/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic compounds > [noun] > by constituent molecules

acetylide1863

oxime1883

osone1889

oximide1893

organoalkali1932

ylid1951

phenolic1956

organo-borane1957

plastoquinone1958

nitrene1960

tetrahedrane1964

1957 Jrnl. Org. Chem. 22 1136/2 The hydroboration reaction should provide a useful and convenient synthetic route for the transformation of olefins into organoboranes, alcohols, and other functional derivatives.

1984 N. N. Greenwood & A. Earnshaw Chem. of Elements (1986) vi. 192 Protonolysis of the resulting organoborane by refluxing it with an anhydrous carboxylic acid yields the alkane corresponding to the alkene.

organo-mercurial adj.

Brit.

/ɔːˌɡanə(ʊ)məːˈkjʊərɪəl/

/ˌɔːɡənə(ʊ)məːˈkjʊərɪəl/

/ˌɔːɡn̩ə(ʊ)məːˈkjʊərɪəl/

U.S.

/ˌɔrɡənoʊˌmərˈkjʊriəl/

/ɔrˌɡænoʊˌmərˈkjʊriəl/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic radicals > [noun] > radical compounds (general)

telluride1832

hydroxide1851

oleic ether1854

organo-mercurial1858

triacetate1860

sulphone1872

sulphoxide1894

tetraalkyllead1923

organophosphate1945

1858 Philos. Trans. (Royal Soc.) 148 168 A question now arises as to whether the above-described substances represent..the sole radicals of the organo-mercurial bases.

1938 H. Gilman Org. Chem. I. iv. 463 Organomercurials are the least active organometallic compounds of the first two groups.

1954 K. Russell Princ. Dairy Farming (ed. 2) vi. 72 For cereal diseases such as leaf stripe in oats and covered smut in barley, a routine measure should be the use of an organo-mercurial dressing.

1990 EMBO Jrnl. 9 4114/1 Organomercurials specifically cleave thiophosphate linkages.

organo-silane n.

Brit.

/ɔːˌɡanə(ʊ)ˈsʌɪleɪn/

/ˌɔːɡənə(ʊ)ˈsʌɪleɪn/

/ˌɔːɡn̩ə(ʊ)ˈsʌɪleɪn/

U.S.

/ˌɔrɡənoʊˈsɪˌleɪn/

/ɔrˌɡænoʊˈsɪˌleɪn/

/ˌɔrɡənoʊˈsaɪˌleɪn/

/ɔrˌɡænoʊˈsaɪˌleɪn/

ΚΠ

1953 Science 25 Sept. 347/2 Preparation and properties of certain substituted organosilanes.

1991 Amer. Scientist Mar. 181/3 The second chapter..deals with organosilanes and organosilicone derivatives of cyclic and high-polymeric phosphazenes.

organo-siloxane n.

Brit.

/ɔːˌɡanə(ʊ)sᵻˈlɒkseɪn/

/ˌɔːɡənə(ʊ)sᵻˈlɒkseɪn/

/ˌɔːɡn̩ə(ʊ)sᵻˈlɒkseɪn/

U.S.

/ˌɔrɡənoʊsəˈlɑkˌseɪn/

/ɔrˌɡænoʊsəˈlɑkˌseɪn/

/ˌɔrɡənoʊˌsaɪˈlɑkˌseɪn/

/ɔrˌɡænoʊˌsaɪˈlɑkˌseɪn/

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic compounds > [noun] > other organic compounds

xanthide1823

idrialin1838

barégin1863

violantin1866

biguanide1881

turmerol1890

tetrazole1892

oxazolone1899

indanthrene1901

silicone1906

platinum blue1908

hydroxycitronellal1929

haloform1931

octamethylcyclotetrasiloxane1946

organo-siloxane1946

chlorofluorocarbon1947

permethrin1975

CFC1976

1946 E. G. Rochow Introd. Chem. Silicones i. 2 The period since 1940 has seen rapid development of the organosiloxanes or silicone polymers.

1965 Science 8 Oct. 201/1 The author is well known as the holder of a Soviet patent (1937) relating to organosiloxane polymers.

1996 Philos. Trans. (Royal Soc.) A. 354 414 New LMM organosiloxanes with photoisomerising azo groups.

(b)

organoclay n.

Brit.

/ɔːˌɡanə(ʊ)ˈkleɪ/

/ˌɔːɡənə(ʊ)ˈkleɪ/

/ˌɔːɡn̩ə(ʊ)ˈkleɪ/

/ɔːˈɡanə(ʊ)kleɪ/

/ˈɔːɡənə(ʊ)kleɪ/

/ˈɔːɡn̩ə(ʊ)kleɪ/

U.S.

/ˌɔrɡənoʊˈkleɪ/

/ɔrˌɡænoʊˈkleɪ/

/ˈɔrɡənoʊˌkleɪ/

/ɔrˈɡænoʊˌkleɪ/

any of a class of substances consisting of clay particles modified by the adsorption of molecules of an organic surfactant, which are used esp. as lubricants and in the extraction of organic compounds from aqueous solutions; frequently attributive, esp. in organoclay complex.

ΚΠ

1962 Clays & Clay Minerals 9 465 Adsorbed phenol molecules occupy interlamellar positions in the organo-clay structure.

1973 Environmental Lett. 4211 (title) Sorption from aqueous solution by organo-clay.

1988 Nature 26 May 346/1 We have prevously described the sorptive characteristics of organo-clay complexes formed with purified smectite clays and organic cations of the form [(CH₃)₃NR]⁺.

1990 Times 22 Aug. 22/6 Low-grade organoclays, used on oil drills to prevent overheating, and..high-grade organoclays, used as additives to improve the consistency of paints.

organo-compound n.

Brit.

/ɔːˌɡanəʊˈkɒmpaʊnd/

/ˌɔːɡənəʊˈkɒmpaʊnd/

/ˌɔːɡn̩əʊˈkɒmpaʊnd/

U.S.

/ˌɔrɡənoʊˈkɑmˌpaʊnd/

/ɔrˌɡænoʊˈkɑmˌpaʊnd/

an organometallic compound.

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > [noun] > organometals

organometal1859

organo-compound1865

1865 Proc. Royal Soc. 14 19 An examination of the so-called organo-compounds of aluminium.

1974 Nature 13 Dec. p. x (advt.) Each chapter provides a complete review of all aspects of the organocompound in question.

1988 F. A. Cotton & G. Wilkinson Adv. Inorg. Chem. (ed. 5) ix. 290 The organo compounds of Si and Ge are very similar in their properties, although Ge compounds have been less extensively studied.

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	organo-
释义	organo-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Origin: A borrowing from Greek. Etymons: Greek ὀργανο-, ὄργανον. Etymology: < Hellenistic Greek ὀργανο-, combining form (in e.g. ὀργανοποιία instrument-making, apparatus, structure) of ancient Greek ὄργανον organ n.¹; compare -o- connective. Compare post-classical Latin organo- (1559 in organographia: see below), French organo- (formations in which are found from at least the early 19th cent.).Rare before the early 19th cent. Earliest in organography n. (1559; an apparent loan from post-classical Latin), and in the isolated formation organopoietical (1664). The earliest independent English formations are apparently organography n. in sense 2 (1806), organology n. (1814). In many compounds a secondary stress may be given as ˌorgano- or orˌgano-. 1. Forming terms with the senses ‘of body organs’, ‘of organic matter’, and (rarely) ‘of instruments, esp. musical instruments’. organomegaly n. Brit. /ɔːˌɡanə(ʊ)ˈmɛɡəli/ , /ɔːˌɡanə(ʊ)ˈmɛɡl̩i/ , /ˌɔːɡənə(ʊ)ˈmɛɡəli/ , /ˌɔːɡənə(ʊ)ˈmɛɡl̩i/ , /ˌɔːɡn̩ə(ʊ)ˈmɛɡəli/ , /ˌɔːɡn̩ə(ʊ)ˈmɛɡl̩i/ , U.S. /ˌɔrɡənoʊˈmɛɡəli/ , /ɔrˌɡænoʊˈmɛɡəli/ Medicine abnormal enlargement of one or more organs of the body (esp. the spleen or liver). ΚΠ 1968 New Eng. Jrnl. Med. 28 Mar. 693/2 The clinical features of acral growth and organomegaly are relatively imprecise and subject to alteration from various causes. 1987 N. J. Smith & C. L. Stanitski Sports Med. i. 4 Organomegaly may be a disqualifying condition for those in collision sports. 2003 Amer. Jrnl. Med. 114 506 His abdomen was thin, nontender, and without masses or organomegaly. † organomorphic adj. [after anthropomorphic adj.] Obsolete (perhaps) taking the form, or representing as, an instrument, tool, or means.Apparently an isolated use. ΚΠ 1886 Kernel & Husk 62 Some metaphors..which describe Him [sc. God] by reference to implements (such as a shield) may be called organomorphic. † organophone n. Music Obsolete a harmonium invented by Alexandre-François Debain, having the reeds or vibrators within rather than below the air channels. ΘΚΠ society > leisure > the arts > music > musical instrument > other musical instruments > [noun] > others coriunc1275 symphonyc1290 symphan1303 minstrelsyc1390 bougounc1400 clokarde?c1475 dulsacordisa1525 symphioun1578 sumphion?1590 clasher1621 orphion1658 polyphone1684 roundball1688 phonomime1834 orchestrion1838 sabbeka1844 bullroarer1848 creaker1855 melodikon1857 symphonia1864 organophone1880 magnetophone1883 Kaffir piano1897 jazzophone1926 mouth bow1932 wobbleboard1960 singing bowl1980 1880 Advt. for Debain & Co. in N.E.D. (1903) at Organo- Organophone. (Debain, Inventor.) A close imitation of the brilliant and broad effects produced by a well-balanced pipe organ. 1881 Times 4 Apr. 15/4 (advt.) Superior modern organophone by De Baine. † organophonic adj. [ < organo- comb. form + -phonic comb. form] Obsolete designating a band of musicians who imitate the instruments of the orchestra with the voice. ΘΚΠ society > leisure > the arts > music > musician > singer > company of singers > [adjective] > type of organophonic1852 1852 Times 28 Sept. 7/2 The ‘Organophonic Band’, who, without instruments, can, by voice alone, imitate all the brass, wood, and catgut in a regular orchestra. 1890 Stratford-on-Avon Herald 19 Dec. 8/1 He joined an organophonic band which travelled throughout the district, and gave variety entertainments. † organoplastic adj. [ < organo- comb. form + -plastic comb. form, after French organoplastique (1849 or earlier)] Biology Obsolete involved in or responsible for the formation of organs. ΘΚΠ the world > life > the body > system > [adjective] > organ > formation of organopoietical1664 organogenic1852 organogenetic1854 organoplastic1855 1855 Philos. Trans. (Royal Soc.) 145 244 Between the seventh and eighth days the ‘organo-plastic globules’ undergo a considerable diminution. 1864 Webster's Amer. Dict. Eng. Lang. Organoplastic. 1879 tr. A. de Quatrefages de Bréau Human Species (ed. 3) xi. 122 Under the influence of the organo~plastic [Fr. organo-plastique] or evolutive force there were formed proto-organisms of a very simple structure. † organoplasty n. [ < organo- comb. form + -plasty comb. form, after French organoplastie (H.-L. Roger-Collard 1842)] Biology Obsolete the formation or development of body organs. ΘΚΠ the world > life > the body > system > [noun] > organ > formation of organogeny1844 organogenesis1865 organoplasty1892 1892 New Sydenham Soc. Lexicon at Organoplasty HygienicOrganoplasty, Roger-Collard's term for the art of developing organs by appropriate exercise of them. † organopoietical adj. [ < organo- comb. form + ancient Greek ποιητικός poietic adj. + -al suffix¹; compare Byzantine Greek ὀργανοποιεῖν to provide with organs, Hellenistic Greek ὀργανοποιικά manufacture of war engines] Obsolete rare = organoplastic adj. ΚΠ 1664 H. Power Exper. Philos. i. 71 The Soul is in full exercise of her Plastick and Organo-Poïetical Faculty. † organoscopy n. [ < organo- comb. form + -scopy comb. form; compare French organoscopie (1823)] Obsolete examination of organs of the body; spec. cranioscopy or phrenology. ΘΚΠ the mind > mental capacity > psychology > faculty psychology > psychological study of the skull > [noun] cranioscopy1804 craniology1806 craniognosy1810 craniognomy1813 organology1814 phrenology1815 zoonomy1815 bumpology1822 turnipology1824 organoscopy1864 the world > health and disease > healing > diagnosis or prognosis > examination > [noun] > by physical means > of specific parts or using specific instruments abdominoscopy1826 stethoscopy1853 haematoscopy1854 laparoscopy1855 autolaryngoscopy1860 autoscopy1861 laryngoscopy1861 pharyngoscopy1861 rhinoscopy1861 organoscopy1864 oesophagoscopy1872 otoscopy1874 endoscopy1879 tracheoscopy1880 gastroscopy1888 thoracoscopy1890 proctoscopy1896 rectoscopy1897 sigmoidoscopy1900 bronchoscopy1903 cystoscopy1908 peritoneoscopy1935 toposcopy1950 mediastinoscopy1959 sonogram1978 1864 Webster's Amer. Dict. Eng. Lang. Organoscopy,..phrenology. 1892 New Sydenham Soc. Lexicon Organoscopy, the examination of the several organs of the body in order to form an opinion concerning the..faculties..and other endowments of the person. Also, a synonym of Cranioscopy. organosedimentary adj. Brit. /ɔːˌɡanə(ʊ)sɛdᵻˈmɛnt(ə)ri/ , /ˌɔːɡənə(ʊ)sɛdᵻˈmɛnt(ə)ri/ , /ˌɔːɡn̩ə(ʊ)sɛdᵻˈmɛnt(ə)ri/ , U.S. /ˌɔrɡənoʊˌsɛdəˈmɛn(t)əri/ , /ɔrˌɡænoʊˌsɛdəˈmɛn(t)əri/ Geology relating to or designating structures (such as stromatolites) produced by a combination of sedimentation and biological processes. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [adjective] sedimentary1830 sedimental1883 organosedimentary1964 1964 Jrnl. Geol. (Chicago) 72 81/2 Algal stromatolites are laminated organosedimentary structures formed by the activity of algal mats in binding fine particulate sediment. 1972 Jrnl. Geol. (Chicago) 80 592/1 ‘Molar tooth’ structure..most likely resulted from organosedimentary processes similar to those forming algal stromatolites. 2000 Nature 5 Oct. 626/2 Microbialites are organosedimentary structures that can be constructed by a variety of metabolically distinct taxa. 2. Chemistry. a. Prefixed to the names of elements to form adjectives (often also used as nouns) denoting compounds in which an atom of the element is bonded directly to one or more organic groups. See also organochlorine adj. and n., organophosphorus adj. organoaluminium adj. Brit. /ɔːˌɡanəʊal(j)ᵿˈmɪnɪəm/ , /ˌɔːɡənəʊal(j)ᵿˈmɪnɪəm/ , /ˌɔːɡn̩əʊal(j)ᵿˈmɪnɪəm/ , U.S. /ˌɔrɡənoʊˌæləˈmɪniəm/ , /ɔrˌɡænoʊˌæləˈmɪniəm/ (also organo-aluminum) ΚΠ 1925 Chem. Abstr. 19 238 (heading) The organoaluminium compounds; ethyl diiodide and diethyl iodide of aluminium. 1988 F. A. Cotton & G. Wilkinson Adv. Inorg. Chem. (ed. 5) vii. 224 All organoaluminums are sensitive to air and to water. organo-boron adj. Brit. /ɔːˌɡanə(ʊ)ˈbɔːrɒn/ , /ˌɔːɡənə(ʊ)ˈbɔːrɒn/ , /ˌɔːɡn̩ə(ʊ)ˈbɔːrɒn/ , U.S. /ˌɔrɡənoʊˈbɔˌrɑn/ , /ɔrˌɡænoʊˈbɔˌrɑn/ ΚΠ 1873 Proc. Royal Soc. 22 19 Dr. Frankland, Researches on Organo-Boron Compounds. 1990 New Scientist 8 Sept. 39/1 Hawthorne and his colleagues prepared VFC by treating an organoboron compound, known as closo-1.8-dicarborane, with 4-carbonethoxypyrazole. organo-lead adj. Brit. /ɔːˌɡanəʊˈlɛd/ , /ˌɔːɡənəʊˈlɛd/ , /ˌɔːɡn̩əʊˈlɛd/ , U.S. /ˌɔrɡənoʊˈlɛd/ , /ɔrˌɡænoʊˈlɛd/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds hydrocyanic1819 organo-zinc1855 organo-mercury1860 organo-lead1861 organo-tin1866 organo-magnesium1901 organo-lithium1932 organo-silicon1941 organophosphorus1950 organophosphorous1958 1861 Q. Jrnl. Chem. Soc. 13 228 Organo-lead compounds are arranged under the types of sesquioxide and peroxide of lead. 1974 Physics Bull. May 180/1 Lead alkyl petrol additives provide virtually the only source of organolead compounds in the environment. organo-lithium adj. Brit. /ɔːˌɡanə(ʊ)ˈlɪθɪəm/ , /ˌɔːɡənə(ʊ)ˈlɪθɪəm/ , /ˌɔːɡn̩ə(ʊ)ˈlɪθɪəm/ , U.S. /ˌɔrɡənoʊˈlɪθiəm/ , /ɔrˌɡænoʊˈlɪθiəm/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds hydrocyanic1819 organo-zinc1855 organo-mercury1860 organo-lead1861 organo-tin1866 organo-magnesium1901 organo-lithium1932 organo-silicon1941 organophosphorus1950 organophosphorous1958 1932 Jrnl. Amer. Chem. Soc. 54 1957 It is possible to prepare many organolithium compounds by the direct interaction of lithium with an RX compound in ether or benzene. 1974 Chem. & Pharmaceut. Bull. (Tokyo) 22 1711 Many reports have been published so far on the reactions between organolithiums and open chain compounds. organo-magnesium adj. Brit. /ɔːˌɡanə(ʊ)maɡˈniːzɪəm/ , /ˌɔːɡənə(ʊ)maɡˈniːzɪəm/ , /ˌɔːɡn̩ə(ʊ)maɡˈniːzɪəm/ , U.S. /ˌɔrɡənoʊˌmæɡˈniziəm/ , /ɔrˌɡænoʊˌmæɡˈniziəm/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds hydrocyanic1819 organo-zinc1855 organo-mercury1860 organo-lead1861 organo-tin1866 organo-magnesium1901 organo-lithium1932 organo-silicon1941 organophosphorus1950 organophosphorous1958 1901 Jrnl. Chem. Soc. 80 i. 263 The organo-magnesium compound produced crystallises in colourless, flattened needles. 1968 R. O. C. Norman Princ. Org. Synthesis vi. 202 Organomagnesium compounds, known as Grignard reagents after their discoverer, are the most widely used of organometallic reagents. organo-mercury adj. Brit. /ɔːˌɡanə(ʊ)ˈməːkjᵿri/ , /ˌɔːɡənə(ʊ)ˈməːkjᵿri/ , /ˌɔːɡn̩ə(ʊ)ˈməːkjᵿri/ , U.S. /ˌɔrɡənoʊˈmərkjəri/ , /ɔrˌɡænoʊˈmərkjəri/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds hydrocyanic1819 organo-zinc1855 organo-mercury1860 organo-lead1861 organo-tin1866 organo-magnesium1901 organo-lithium1932 organo-silicon1941 organophosphorus1950 organophosphorous1958 1860 Chem. News 30 June 26/1 At present the representatives of the organo-mercury series all belong to the mercuric type. 1988 Nature 29 Sept. 464/1 Not least of the stimulants to this research were the disasters, such as that at Minamata, caused by pollution from organomercury compounds. organo-silicon adj. Brit. /ɔːˌɡanə(ʊ)ˈsɪlᵻk(ə)n/ , /ˌɔːɡənə(ʊ)ˈsɪlᵻk(ə)n/ , /ˌɔːɡn̩ə(ʊ)ˈsɪlᵻk(ə)n/ , U.S. /ˌɔrɡənoʊˈsɪləˌkɑn/ , /ˌɔrɡənoʊˈsɪlᵻkən/ , /ɔrˌɡænoʊˈsɪləˌkɑn/ , /ɔrˌɡænoʊˈsɪlᵻkən/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds hydrocyanic1819 organo-zinc1855 organo-mercury1860 organo-lead1861 organo-tin1866 organo-magnesium1901 organo-lithium1932 organo-silicon1941 organophosphorus1950 organophosphorous1958 1941 Jrnl. Amer. Chem. Soc. 63 1194/1 The lack of a clear understanding of the behavior of the substituted organo-silicon compounds..led to an investigation of some of the disubstituted compounds. 1992 Quality Mag. (ICI Chemicals & Polymers) (BNC) Summer 4 The company was founded in 1943 when Corning glass works teamed its organo-silicon research with Dow Chemical Company's experience in manufacturing chemicals. organo-tin adj. Brit. /ɔːˌɡanəʊˈtɪn/ , /ˌɔːɡənəʊˈtɪn/ , /ˌɔːɡn̩əʊˈtɪn/ , U.S. /ˌɔrɡənoʊˈtɪn/ , /ɔrˌɡænoʊˈtɪn/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds hydrocyanic1819 organo-zinc1855 organo-mercury1860 organo-lead1861 organo-tin1866 organo-magnesium1901 organo-lithium1932 organo-silicon1941 organophosphorus1950 organophosphorous1958 1866 H. Watts Dict. Chem. IV. 220 No organo-tin compounds containing only one equivalent of positive radicle, have hitherto been produced. 1988 E. Wood et al. Sea Life Brit. & Ireland 198 Organotin compounds..are used in antifouling paints on boat hulls and in treating fish farm nets. organo-zinc adj. Brit. /ɔːˌɡanəʊˈzɪŋk/ , /ˌɔːɡənəʊˈzɪŋk/ , /ˌɔːɡn̩əʊˈzɪŋk/ , U.S. /ˌɔrɡənoʊˈzɪŋk/ , /ɔrˌɡænoʊˈzɪŋk/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic radicals > [adjective] > radical compounds hydrocyanic1819 organo-zinc1855 organo-mercury1860 organo-lead1861 organo-tin1866 organo-magnesium1901 organo-lithium1932 organo-silicon1941 organophosphorus1950 organophosphorous1958 1855 Philos. Trans. (Royal Soc.) 145 260 The second digester is made of wrought copper and is of smaller dimensions, being especially designed for the preparation of large quantities of organo-zinc compounds. 1988 F. A. Cotton & G. Wilkinson Adv. Inorg. Chem. (ed. 5) xvi. 616 Organozinc compounds are historically important because they were the first organometallic compounds to be prepared. organo-halogen adj. Brit. /ɔːˌɡanə(ʊ)ˈhalədʒ(ə)n/ , /ˌɔːɡənə(ʊ)ˈhalədʒ(ə)n/ , /ˌɔːɡn̩ə(ʊ)ˈhalədʒ(ə)n/ , U.S. /ˌɔrɡənoʊˈhælədʒən/ , /ɔrˌɡænoʊˈhælədʒən/ ΚΠ 1962 Talanta 9 745 The fundamental nature of the differences between organofluorine compounds and other organohalogen compounds came to be generally appreciated. 1977 Offshore Engineer May 29/1 The real villains on the ‘blacklist’ are certain organohalogens (for example the extremely toxic and readily absorbed printing by-product PCB), mercury and cadmium. b. (a) Prefixed to words denoting types of compound to form adjectives and nouns indicating the presence of organic groups; see also organochloride n., organophosphate n. organoalkali adj. Brit. /ɔːˌɡanəʊˈalkəlʌɪ/ , /ˌɔːɡənəʊˈalkəlʌɪ/ , /ˌɔːɡn̩əʊˈalkəlʌɪ/ , U.S. /ˌɔrɡənoʊˈælkəˌlaɪ/ , /ɔrˌɡænoʊˈælkəˌlaɪ/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic compounds > [noun] > by constituent molecules acetylide1863 oxime1883 osone1889 oximide1893 organoalkali1932 ylid1951 phenolic1956 organo-borane1957 plastoquinone1958 nitrene1960 tetrahedrane1964 1932 Jrnl. Amer. Chem. Soc. 54 1958 A corresponding simpler technique might be used with organoalkali compounds like phenyl-lithium. 1968 G. E. Coates et al. Princ. Organometallic Chem. iii. 34 A large class of charge-delocalized organoalkali compounds consists of the addition compounds between alkali metals and bi- or poly-nuclear aromatic hydrocarbons. organo-borane n. Brit. /ɔːˌɡanə(ʊ)ˈbɔːreɪn/ , /ˌɔːɡənə(ʊ)ˈbɔːreɪn/ , /ˌɔːɡn̩ə(ʊ)ˈbɔːreɪn/ , U.S. /ˌɔrɡənoʊˈbɔˌreɪn/ , /ɔrˌɡænoʊˈbɔˌreɪn/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic compounds > [noun] > by constituent molecules acetylide1863 oxime1883 osone1889 oximide1893 organoalkali1932 ylid1951 phenolic1956 organo-borane1957 plastoquinone1958 nitrene1960 tetrahedrane1964 1957 Jrnl. Org. Chem. 22 1136/2 The hydroboration reaction should provide a useful and convenient synthetic route for the transformation of olefins into organoboranes, alcohols, and other functional derivatives. 1984 N. N. Greenwood & A. Earnshaw Chem. of Elements (1986) vi. 192 Protonolysis of the resulting organoborane by refluxing it with an anhydrous carboxylic acid yields the alkane corresponding to the alkene. organo-mercurial adj. Brit. /ɔːˌɡanə(ʊ)məːˈkjʊərɪəl/ , /ˌɔːɡənə(ʊ)məːˈkjʊərɪəl/ , /ˌɔːɡn̩ə(ʊ)məːˈkjʊərɪəl/ , U.S. /ˌɔrɡənoʊˌmərˈkjʊriəl/ , /ɔrˌɡænoʊˌmərˈkjʊriəl/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic radicals > [noun] > radical compounds (general) telluride1832 hydroxide1851 oleic ether1854 organo-mercurial1858 triacetate1860 sulphone1872 sulphoxide1894 tetraalkyllead1923 organophosphate1945 1858 Philos. Trans. (Royal Soc.) 148 168 A question now arises as to whether the above-described substances represent..the sole radicals of the organo-mercurial bases. 1938 H. Gilman Org. Chem. I. iv. 463 Organomercurials are the least active organometallic compounds of the first two groups. 1954 K. Russell Princ. Dairy Farming (ed. 2) vi. 72 For cereal diseases such as leaf stripe in oats and covered smut in barley, a routine measure should be the use of an organo-mercurial dressing. 1990 EMBO Jrnl. 9 4114/1 Organomercurials specifically cleave thiophosphate linkages. organo-silane n. Brit. /ɔːˌɡanə(ʊ)ˈsʌɪleɪn/ , /ˌɔːɡənə(ʊ)ˈsʌɪleɪn/ , /ˌɔːɡn̩ə(ʊ)ˈsʌɪleɪn/ , U.S. /ˌɔrɡənoʊˈsɪˌleɪn/ , /ɔrˌɡænoʊˈsɪˌleɪn/ , /ˌɔrɡənoʊˈsaɪˌleɪn/ , /ɔrˌɡænoʊˈsaɪˌleɪn/ ΚΠ 1953 Science 25 Sept. 347/2 Preparation and properties of certain substituted organosilanes. 1991 Amer. Scientist Mar. 181/3 The second chapter..deals with organosilanes and organosilicone derivatives of cyclic and high-polymeric phosphazenes. organo-siloxane n. Brit. /ɔːˌɡanə(ʊ)sᵻˈlɒkseɪn/ , /ˌɔːɡənə(ʊ)sᵻˈlɒkseɪn/ , /ˌɔːɡn̩ə(ʊ)sᵻˈlɒkseɪn/ , U.S. /ˌɔrɡənoʊsəˈlɑkˌseɪn/ , /ɔrˌɡænoʊsəˈlɑkˌseɪn/ , /ˌɔrɡənoʊˌsaɪˈlɑkˌseɪn/ , /ɔrˌɡænoʊˌsaɪˈlɑkˌseɪn/ ΘΚΠ the world > matter > chemistry > organic chemistry > organic compounds > [noun] > other organic compounds xanthide1823 idrialin1838 barégin1863 violantin1866 biguanide1881 turmerol1890 tetrazole1892 oxazolone1899 indanthrene1901 silicone1906 platinum blue1908 hydroxycitronellal1929 haloform1931 octamethylcyclotetrasiloxane1946 organo-siloxane1946 chlorofluorocarbon1947 permethrin1975 CFC1976 1946 E. G. Rochow Introd. Chem. Silicones i. 2 The period since 1940 has seen rapid development of the organosiloxanes or silicone polymers. 1965 Science 8 Oct. 201/1 The author is well known as the holder of a Soviet patent (1937) relating to organosiloxane polymers. 1996 Philos. Trans. (Royal Soc.) A. 354 414 New LMM organosiloxanes with photoisomerising azo groups. (b) organoclay n. Brit. /ɔːˌɡanə(ʊ)ˈkleɪ/ , /ˌɔːɡənə(ʊ)ˈkleɪ/ , /ˌɔːɡn̩ə(ʊ)ˈkleɪ/ , /ɔːˈɡanə(ʊ)kleɪ/ , /ˈɔːɡənə(ʊ)kleɪ/ , /ˈɔːɡn̩ə(ʊ)kleɪ/ , U.S. /ˌɔrɡənoʊˈkleɪ/ , /ɔrˌɡænoʊˈkleɪ/ , /ˈɔrɡənoʊˌkleɪ/ , /ɔrˈɡænoʊˌkleɪ/ any of a class of substances consisting of clay particles modified by the adsorption of molecules of an organic surfactant, which are used esp. as lubricants and in the extraction of organic compounds from aqueous solutions; frequently attributive, esp. in organoclay complex. ΚΠ 1962 Clays & Clay Minerals 9 465 Adsorbed phenol molecules occupy interlamellar positions in the organo-clay structure. 1973 Environmental Lett. 4211 (title) Sorption from aqueous solution by organo-clay. 1988 Nature 26 May 346/1 We have prevously described the sorptive characteristics of organo-clay complexes formed with purified smectite clays and organic cations of the form [(CH₃)₃NR]⁺. 1990 Times 22 Aug. 22/6 Low-grade organoclays, used on oil drills to prevent overheating, and..high-grade organoclays, used as additives to improve the consistency of paints. organo-compound n. Brit. /ɔːˌɡanəʊˈkɒmpaʊnd/ , /ˌɔːɡənəʊˈkɒmpaʊnd/ , /ˌɔːɡn̩əʊˈkɒmpaʊnd/ , U.S. /ˌɔrɡənoʊˈkɑmˌpaʊnd/ , /ɔrˌɡænoʊˈkɑmˌpaʊnd/ an organometallic compound. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > [noun] > organometals organometal1859 organo-compound1865 1865 Proc. Royal Soc. 14 19 An examination of the so-called organo-compounds of aluminium. 1974 Nature 13 Dec. p. x (advt.) Each chapter provides a complete review of all aspects of the organocompound in question. 1988 F. A. Cotton & G. Wilkinson Adv. Inorg. Chem. (ed. 5) ix. 290 The organo compounds of Si and Ge are very similar in their properties, although Ge compounds have been less extensively studied. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < comb. form1664
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