- Enter a word for the dictionary definition.
From The Collaborative International Dictionary of English v.0.48:
Olein \O"le*in\ ([=o]"l[-e]*[i^]n), n. [L. oleum oil: cf. F. ol['e]ine.] (Physiol. Chem.) A fat, liquid at ordinary temperatures, but solidifying at temperatures below 0[deg] C., found abundantly in both the animal and vegetable kingdoms (see Palmitin). It dissolves solid fats, especially at 30-40[deg] 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]