First Known Use: 1838
Dictionary
olein
noun ole·in \ˈō-lē-ən\
Definition of OLEIN
1
: an ester of glycerol and oleic acid
2
: the liquid portion of a fat
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Origin of OLEIN
French oléine, from Latin oleum
Medical Dictionary
olein
noun ole·in \ˈō-lē-ən\
Medical Definition of OLEIN
: an ester of glycerol and oleic acid—called also triolein
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