nounEtymology: French, ultimately from Greek margaron pearl, probably back-formation from margarit?sDate: 1836 a food product made usually from vegetable oils churned with ripened skim milk to a smooth emulsion and used like butter
Margarine Mar"ga*rine, n. [F.] 1. Artificial butter; oleomargarine. The word margarine shall mean all substances, whether compounds or otherwise, prepared in imitation of butter, and whether mixed with butter or not. --Margarine Act, 1887 (50 & 51 Vict. c. 29). 2. Margarin.