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单词 nitroso-
释义

nitroso-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.
Forms: before a vowel usually nitros-.
Origin: A borrowing from Latin, combined with an English element. Etymons: Latin nitrōsus , -o- connective.
Etymology: < classical Latin nitrōsus nitrose adj. + -o- connective.Formations are found from the mid 19th cent.
Chemistry.
1. Designating, containing, or involving a nitrosyl group, —N=O.
a. Prefixed to the names of compounds.
ΚΠ
1853 Sci. Amer. 19 Mar. 211/2 Of this (nitroso-nitric acid) take four fluid ounces, commercial sulphuric acid two ounces, good picked cotton one ounce—mix the acids and pour them gradually upon the cotton in a wide shallow dish.
1857 Q. Jrnl. Chem. Soc. 9 5 Nitrosophenyline may..be viewed as aniline in which 1 eq. of hydrogen is replaced by 1 eq. of NO2; to such replacements Laurent has applied the term ‘substitutions nitrosées’. From this expression we have constructed the name of the new colouring matter; but as this substance presents but a very equivocal basic character, we have preferred to call it nitrosophenyline rather than nitrosaniline.
1881 Jrnl. Chem. Soc. 39 40 With a view to producing by this means the nitroso-sulphonic acids.
1916 E. Knecht et al. Man. Dyeing (ed. 3) II. vii. 620 Gallanilide blue is produced by the action of gallanilide on nitrosodimethylaniline and subsequent treatment with aniline.
1939 Thorpe's Dict. Appl. Chem. III. 335/1 Nitroso-β-phenylhydroxylamine (cupferron) furnishes insoluble red and white complexes with ferric and cupric salts respectively.
1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) I. 408/1 Oxidation of aniline may lead to phenylhydroxylamine, nitrosobenzene, or bimolecular products with certain reagents such as hydrogen peroxide.
1991 Sci. News 6 Apr. 215/3 The team..doused those cells with low doses of N-nitrosomethylurea, a cancer-causing chemical derived from the nicotine in tobacco smoke.
b. Preceding words other than chemical names. Often without hyphen, functioning as an attributive adjective.Examples without hyphen may be interpreted as attributive use of a corresponding noun.
ΚΠ
1872 H. Watts Dict. Chem. Suppl. 874 Nitroso-compounds.
1885 Jrnl. Soc. Dyers & Colourists 1 177/2 Tetramethyltolylenediamine seems to give a similar nitroso compound.
1890 Internat. Ann. Anthonys Photogr. Bull. 335 If..instead of using the azo derivative of Schaeffer's acid, we employ the nitroso-derivative of the same, the process will be materially cheapened.
1920 F. A. Mason tr. G. von Georgievics Text-bk. Dye Chem. 66 On nitrosation, p- nitroso derivatives are obtained where the para position is free.
1946 A. A. Morton Chem. Heterocyclic Compounds xiv. 421 No naturally occurring isoxazole compounds are known. They are often obtained in the course of laboratory work with nitroso and isonitroso compounds.
1971 N. L. Allinger et al. Org. Chem. xxii. 604 Aliphatic nitroso compounds which bear at least one hydrogen on the carbon α to the nitroso group are isomerized rapidly and irreversibly by acid or base to oximes.
1992 C. A. Smith & E. J. Wood Biosynthesis v. 105 Nitrites and related nitroso compounds are known carcinogens.
2.
nitrosobacterium n.
Brit. /nʌɪˌtrəʊsə(ʊ)bakˈtɪərɪəm/
,
U.S. /naɪˈˌtroʊsoʊˌbækˈtɪriəm/
a bacterium which converts ammonium compounds into nitrites; usually in plural.
ΚΠ
1902 Encycl. Brit. XXVI. 56/2 The Nitro-bacteria are smaller, finer, and quite different from the nitroso-bacteria, and are incapable of attacking and utilizing ammonium carbonate.
1990 Canad. Jrnl. Microbiol. 36 273 In the swine waste where ammonia was oxidized to nitrite, the nitrosobacteria growth increased..while the nitrobacteria growth decreased.
nitroso dye n.
Brit. /nʌɪˈtrəʊsəʊ dʌɪ/
,
U.S. /naɪˈtroʊsoʊ ˌdaɪ/
any of several mordant dyes having a nitroso group as the chromophore, which are obtained by the action of nitrous acid on phenols or naphthols.
ΚΠ
1911 I. W. Fay Chem. Coal-tar Dyes v. 71 Naphthol green B. is a nitroso dye which, unlike the other members of this class, does not require a mordant upon the fabric to be dyed.
1961 H. Blackshaw & R. Brightman Dict. Dyeing & Textile Printing 118 Existing commercial nitroso dyes are few in number.
nitroso group n.
Brit. /nʌɪˈtrəʊsəʊ ɡruːp/
,
U.S. /naɪˈtroʊsoʊ ˌɡrup/
the nitrosyl group, —N=O.
ΘΚΠ
the world > matter > chemistry > elements and compounds > metals > specific elements > nitrogen > [noun] > radicals
nitroso group1883
1883 Science 6 Apr. 256/2 Since the isomerism of these bodies was established by differences in their physical and chemical properties, the first cannot contain a nitroso group.
1959 Amer. Jrnl. Bot. 46 211/2 Phenol reacted with nitrous acid forms a yellow quinone oxime or a nitrosophenol, a reaction fundamental to the chemistry of nitroso dyes in which the chromophore is the nitroso group.
This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).
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comb. form1853
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