oleinn.
/ˈəʊlɪɪn/, U.S. /ˈoʊliən/ Chemistry.
A glyceryl ester of oleic acid; spec. glyceryl trioleate, C3H5(C18H33O2)3, a colourless oily liquid which is a very common natural fat (also called triolein). Also (more widely): any liquid fat (consisting chiefly of such esters) separated from a solid or semi-solid fat (contrasted with stearin n. 2); (formerly, also) †a glyceride of a fatty acid other than oleic acid (obsolete).
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the world > matter > chemistry > organic chemistry > substances from oils and fats > [noun]
odorine1833
olein1838
palmitin1841
sericin1841
valerol1845
fuscin1864
safrole1869
anethene1872
methyl salicylate1876
salviol1877
isoeugenol1883
cineole1885
citronellal1890
coriandrol1891
tansy oil1894
arachin1905
ascaridol1908
phorbol1935
society > occupation and work > materials > derived or manufactured material > extracted or refined oil > [noun] > constituent of
elain1819
olein1838
triolein1855
stearin1910
1838 T. Thomson Chem. Org. Bodies 126 Olein is white, very liquid, and lighter than water.
1839 Gardener's Mag. 15 143 100 parts of the Madia oil consist of 45 parts of oleine [etc.].
1854 Sci. Amer. 20 May 283/3 This invention consists in dimishing or removing the smell and color from the oily matters that are produced by the destructive distillation of resin, and in combining them with the olein of palm and other neutral oils.
1857 W. A. Miller Elements Chem. III. 370 The olein of olive oil differs from the olein of linseed oil, or linolein.
c1865 H. Letheby in J. Wylde Circle of Sci. I. 105/1 The elaine or oleine of palm oil.
1866–77 H. Watts Dict. Chem. IV. 179 [Drying oils] contain an olein different from that of the non-drying oils, and yielding by saponification, not oleic, but linoleic acid or an acid similar thereto.
1887 Cent. Mag. May 66/2 A large part of the fat of the human body consists of olein.
1893 T. E. Thorpe Dict. Appl. Chem. III. 59/1 The product of the cold pressing of cocoanut and palm oil is known as ‘cocoanut olein’ and ‘palm olein’ respectively.
1930 Engineering 11 July 31/1 A lubricant such as oleine..or oleic acid, when added to a fuel containing metallic dope, had the effect of partially inhibiting the detonation-delaying action of the dope.
1955 B. C. L. Kemp Elem. Org. Chem. (new ed.) x. 149 Good quality butter contains about 90 per cent of fat, which consists mainly of stearin, palmitin and olein.
1981 Amer. Midland Naturalist 105 411 The mesocarp of poison ivy was filled with ‘wax’, which consisted mainly of glycerides of fatty acids—mostly palmitin but also some olein.
2000 Jrnl. Food Sci. 65 622 Lard was fractionated into olein and stearine, and lard olein was further refined.
This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).
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n.1838