Same as glycerin.
Or glycerine or propan-1,2,3-triol; HOCH2CH(OH)CH2OH thick, colorless, odorless, sweetish liquid. It is obtained from vegetable and animal oils and fats (by treatment with acid, alkali, superheated steam, or an enzyme), or by fermentation of glucose, and is used in the manufacture of high explosives, in antifreeze solutions, to maintain moist conditions in fruits and tobacco, and in cosmetics.