ˈōlēə̇n noun
( -s )
Etymology: French oléine, from olé- ole- + -ine
1. : an ester of glycerol and oleic acid ; especially : triolein
2. also ole·ine “, -ēˌēn
a. : the liquid portion of any fat — distinguished from stearin
b. : sulfonated oil
c. : commercial oleic acid
white olein
— compare red oil 1a