French, ultimately from Greek margaron pearl, probably back-formation from margaritēs
First Known Use: 1836
noun\ˈmärj-(ə-)rən, -ə-ˌrēn\(Medical Dictionary)
Medical Definition of MARGARINE
: a food product made usually from vegetable oils churned with ripened skim milk to a smooth emulsion, often fortified with vitamins A and D, and used as a substitute for butter
Food made from one or more vegetable or animal fats or oils mixed with milk and other ingredients. It is used in cooking and as a spread as a substitute for butter. Margarine was developed by the French chemist Hippolyte Mège-Mouriès in the late 1860s. The fats used have varied widely; polyunsaturated oils such as corn, canola, and sunflower oil, considered more healthful than saturated fats, are common today.