[1] : The Collaborative International Dictionary of English v.0.48

olein \o"lein\ =o"l-ei^n, n. l. oleum oil: cf. f.
   ol'eine. physiol. chem.
   a fat, liquid at ordinary temperatures, but solidifying at
   temperatures below 0deg c., found abundantly in both the
   animal and vegetable kingdoms see palmitin. it dissolves
   solid fats, especially at 30-40deg c. chemically, olein is
   a glyceride of oleic acid; and, as three molecules of the
   acid are united to one molecule of glycerol to form the fat,
   it is technically known as triolein. it is also called
   elain.
   1913 webster
see also:
palmitin triolein elain 

[2] : The Collaborative International Dictionary of English v.0.48

elaine \ela"ine\, or elain \ela"in\, n. gr. ? olive oil, oil,
   from ? the olive tree: cf. f. 'ela"ine. chem.
   same as olein.
   1913 webster
see also:
olein 

Elain >> E Words
Elain, definition of term: Elain
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