Glycerin; Glycerine

Part of speech: noun (n.)

An oily, viscous liquid, C3H5(OH)3, colorless and odorless, and with a hot, sweetish taste, existing in the natural fats and oils as the base, combined with various acids, as oleic, margaric, stearic, and palmitic. It is a triatomic alcohol, and hence is also called glycerol. See Note under Gelatin.