oleicadj.

Brit.

/əʊˈliːɪk/,

/əʊˈleɪɪk/, U.S.

/oʊˈliɪk/,

/oʊˈleɪɪk/

Forms: 1800s oleïc, 1800s– oleic.

Origin: A borrowing from French. Etymon: French oléique.

Etymology: < French oléique (M. E. Chevreul 1816, in Ann. de chim. et de physique 2 346) < classical Latin oleum oil (see oleum n.) + French -ique -ic suffix. N.E.D. (1902) gives the pronunciation as (olī·ik, ō^u·liˌik) /əʊˈliːɪk/ /ˈəʊliːɪk/.

Chemistry.

1. oleic acid n. a straight-chain unsaturated fatty acid, CH₃(CH₂)₇CH=CH(CH₂)₇COOH, which occurs in most fats and oils as glycerides and is a colourless, tasteless, oily solid or liquid (melting point 14°C); cis-9-octadecenoic acid; cf. elaidic adj. Formerly (also): †any acid of the oleic series (obsolete).

ΚΠ

1819 J. G. Children Ess. Chem. Anal. 315 Oleic acid was obtained by Chevreul from the soluble portion of the soap formed with hog's lard and potassa.

1836 Blackwood's Edinb. Mag. 39 309 One of three acids, either the oleïc, margaritic, or cetic.

1866 H. E. Roscoe Lessons Elem. Chem. xxxvi. 318 The natural oils and fats are all compounds of glycerine chiefly with palmitic, oleic, or stearic acids.

1866–77 H. Watts Dict. Chem. IV. 192 Oleic acid crystallises from alcoholic solution in dazzling white needles.

1894 Daily Graphic 20 Apr. 13/2 The quieting effect of all oils or soaps used is in direct proportion to the amount of free oleic acid they contain.

1899 E. F. Smith tr. V. von Richter Org. Chem. 276 Oleic Acids, Olefine Monocarbonylic Acids, C_nH_2n−1CO₂H. The acids of this series, bearing the name Oleic Acids, because oleic acid belongs to them, differ from the fatty acids by containing two atoms of hydrogen less than the latter.

1934 Jrnl. Amer. Chem. Soc. 56 1563/1 By making use of the Boord olefin synthesis it has been possible to synthesize a mixture of oleic and elaidic acids in satisfactory yields.

1953 R. W. Fairbrother Text-bk. Bacteriol. (ed. 7) xxiv. 305 The Dubos medium contains bovine albumin (0.3 per cent.) and..a water-soluble ester of oleic acid.

1978 H. E. L. Andrew Batsford Encycl. Crafts 114/1 Flux, the mildest possible, made from tallow and oleic acid, is used on the cleaned lead.

1991 Q. Rev. Wines Autumn 27/2 The distinction between virgin and extra virgin depends on the percent of oleic acid in the oil.

†2. oleic ether n. an ester of oleic acid; spec. ethyl oleate, C₁₇H₃₃COOC₂H₅. Obsolete.

ΘΚΠ

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

telluride1832

hydroxide1851

oleic ether1854

organo-mercurial1858

triacetate1860

sulphone1872

sulphoxide1894

tetraalkyllead1923

organophosphate1945

1854 J. W. Draper Kane's Elements Chem. (Amer. ed.) xxiii. 585 The Oleïc Ether was formed by Varrentrapp by passing muriatic acid gas into a solution of oleic acid in alcohol.

1866–77 H. Watts Dict. Chem. IV. 195 Oleate of Ethyl or Oleic Ether..is a colourless liquid of specific gravity 0·87 at 18°.

1870 Harper's Mag. Oct. 790/2 This preparation, it is said, consists of a mixture of sixteen parts of oleic acid, two parts of alcohol of 90 per cent., and one part concentrated sulphuric acid. The oleic ether formed is poured off, it being a thin, brownish oil.

3. oleic series n. a series of unsaturated aliphatic acids of the general formula C_nH_2n−1COOH, in which there is a chain of carbon atoms containing one double bond. Now rare.The first acids of the series are acrylic (propenoic) acid, crotonic (butenoic) acid, and angelic and tiglic acids (pentenoic acids).

ΚΠ

1863 H. Watts Dict. Chem. I. 964 Cimicic acid, C¹⁵H²⁸O², an acid, belonging to the oleic series, contained in the fetid oily liquid ejected by a kind of bug (Rhaphigaster punctipennis) when irritated.

1905 Proc. Royal Soc. B. 76 606 The ordinary fats..are..simply glycerides of acids of the acetic or oleic series.

1934 C. C. Steele Introd. Plant Biochem. iv. 33 The unsaturated acids under discussion contain one or more double bonds in the molecule, and are usually grouped into corresponding series: I. Oleic series: one double bond:..II. Linoleic series: two double bonds:..III. Linolenic series: three double bonds.

1979 Seminars Perinatol. 3 356/1 Inhibitions and competitions among the EFAs [sc. essential fatty acids] of the three series (oleic, linoleic, and α-linolenic) have been demonstrated.

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

单词	oleic
释义	oleicadj. Brit. /əʊˈliːɪk/, /əʊˈleɪɪk/, U.S. /oʊˈliɪk/, /oʊˈleɪɪk/ Forms: 1800s oleïc, 1800s– oleic. Origin: A borrowing from French. Etymon: French oléique. Etymology: < French oléique (M. E. Chevreul 1816, in Ann. de chim. et de physique 2 346) < classical Latin oleum oil (see oleum n.) + French -ique -ic suffix. N.E.D. (1902) gives the pronunciation as (olī·ik, ō^u·liˌik) /əʊˈliːɪk/ /ˈəʊliːɪk/. Chemistry. 1. oleic acid n. a straight-chain unsaturated fatty acid, CH₃(CH₂)₇CH=CH(CH₂)₇COOH, which occurs in most fats and oils as glycerides and is a colourless, tasteless, oily solid or liquid (melting point 14°C); cis-9-octadecenoic acid; cf. elaidic adj. Formerly (also): †any acid of the oleic series (obsolete). ΚΠ 1819 J. G. Children Ess. Chem. Anal. 315 Oleic acid was obtained by Chevreul from the soluble portion of the soap formed with hog's lard and potassa. 1836 Blackwood's Edinb. Mag. 39 309 One of three acids, either the oleïc, margaritic, or cetic. 1866 H. E. Roscoe Lessons Elem. Chem. xxxvi. 318 The natural oils and fats are all compounds of glycerine chiefly with palmitic, oleic, or stearic acids. 1866–77 H. Watts Dict. Chem. IV. 192 Oleic acid crystallises from alcoholic solution in dazzling white needles. 1894 Daily Graphic 20 Apr. 13/2 The quieting effect of all oils or soaps used is in direct proportion to the amount of free oleic acid they contain. 1899 E. F. Smith tr. V. von Richter Org. Chem. 276 Oleic Acids, Olefine Monocarbonylic Acids, C_nH_2n−1CO₂H. The acids of this series, bearing the name Oleic Acids, because oleic acid belongs to them, differ from the fatty acids by containing two atoms of hydrogen less than the latter. 1934 Jrnl. Amer. Chem. Soc. 56 1563/1 By making use of the Boord olefin synthesis it has been possible to synthesize a mixture of oleic and elaidic acids in satisfactory yields. 1953 R. W. Fairbrother Text-bk. Bacteriol. (ed. 7) xxiv. 305 The Dubos medium contains bovine albumin (0.3 per cent.) and..a water-soluble ester of oleic acid. 1978 H. E. L. Andrew Batsford Encycl. Crafts 114/1 Flux, the mildest possible, made from tallow and oleic acid, is used on the cleaned lead. 1991 Q. Rev. Wines Autumn 27/2 The distinction between virgin and extra virgin depends on the percent of oleic acid in the oil. †2. oleic ether n. an ester of oleic acid; spec. ethyl oleate, C₁₇H₃₃COOC₂H₅. Obsolete. ΘΚΠ the world > matter > chemistry > organic chemistry > organic radicals > [noun] > radical compounds (general) telluride1832 hydroxide1851 oleic ether1854 organo-mercurial1858 triacetate1860 sulphone1872 sulphoxide1894 tetraalkyllead1923 organophosphate1945 1854 J. W. Draper Kane's Elements Chem. (Amer. ed.) xxiii. 585 The Oleïc Ether was formed by Varrentrapp by passing muriatic acid gas into a solution of oleic acid in alcohol. 1866–77 H. Watts Dict. Chem. IV. 195 Oleate of Ethyl or Oleic Ether..is a colourless liquid of specific gravity 0·87 at 18°. 1870 Harper's Mag. Oct. 790/2 This preparation, it is said, consists of a mixture of sixteen parts of oleic acid, two parts of alcohol of 90 per cent., and one part concentrated sulphuric acid. The oleic ether formed is poured off, it being a thin, brownish oil. 3. oleic series n. a series of unsaturated aliphatic acids of the general formula C_nH_2n−1COOH, in which there is a chain of carbon atoms containing one double bond. Now rare.The first acids of the series are acrylic (propenoic) acid, crotonic (butenoic) acid, and angelic and tiglic acids (pentenoic acids). ΚΠ 1863 H. Watts Dict. Chem. I. 964 Cimicic acid, C¹⁵H²⁸O², an acid, belonging to the oleic series, contained in the fetid oily liquid ejected by a kind of bug (Rhaphigaster punctipennis) when irritated. 1905 Proc. Royal Soc. B. 76 606 The ordinary fats..are..simply glycerides of acids of the acetic or oleic series. 1934 C. C. Steele Introd. Plant Biochem. iv. 33 The unsaturated acids under discussion contain one or more double bonds in the molecule, and are usually grouped into corresponding series: I. Oleic series: one double bond:..II. Linoleic series: two double bonds:..III. Linolenic series: three double bonds. 1979 Seminars Perinatol. 3 356/1 Inhibitions and competitions among the EFAs [sc. essential fatty acids] of the three series (oleic, linoleic, and α-linolenic) have been demonstrated. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < adj.1819
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