glycerin
uncountable noun: Glycerin is a thick, sweet, colorless liquid that is used especially in making medicine, explosives, and antifreeze for cars.
glycerin in American English
glycerol
noun: a colorless, odorless, syrupy, sweet liquid, C3H8O3, usually obtained by the saponification of natural fats and oils: used for sweetening and preserving food, in the manufacture of cosmetics, perfumes, inks, and certain glues and cements, as a solvent and
glycerin in the Pharmaceutical Industry
noun: Glycerin is a thick, sweet, colorless liquid that is used to make medicine capsules.