stearinPronunciation: /ˈstɪərɪn/Definition of stearin noun [mass noun] a white crystalline substance which is the main constituent of tallow and suet. It is a glyceryl ester of stearic acid. a mixture of fatty acids used in candle-making. Origin: early 19th century: from French stéarine, from Greek stear 'tallow'stearin in other Oxford dictionaries Definition of stearin in the US English dictionary
