Glycerol definitions

glĭs'ə-rôl', -rōl'
A syrupy, sweet, colorless or yellowish liquid triol, C3 H8 O3 , obtained from fats and oils as a byproduct of saponification and used as a solvent, antifreeze, plasticizer, and sweetener and in the manufacture of dynamite, cosmetics, liquid soaps, inks, and lubricants.
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An odorless, colorless, syrupy liquid, C3H5(OH)3, prepared by the hydrolysis of fats and oils: it is used as a solvent, skin lotion, food preservative, etc., and in the manufacture of explosives, alkyd resins, etc.
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A syrupy, sweet, colorless or yellowish liquid triol, C3 H8 O3 , obtained from fats and oils as a byproduct of saponification and used as a solvent, antifreeze, plasticizer, and sweetener and in the manufacture of dynamite, cosmetics, liquid soaps, inks, and lubricants.
noun
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A sweet, syrupy liquid obtained from animal fats and oils or by the fermentation of glucose. It is used as a solvent, sweetener, and antifreeze and in making explosives and soaps. Glycerol consists of a propane molecule attached to three hydroxyl (OH) groups. Also called glycerin, glycerine. Chemical formula: C3H8O3.
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(organic chemistry) 1,2,3-trihydroxy-propane or propan-1,2,3-triol; a trihydric alcohol.
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A syrupy sweet liquid obtained as a by-product in the manufacture of soap from animal or vegetable oils and fats; it is used as an antifreeze, a plasticizer, and a food sweetener and in the manufacture of dynamite, cosmetics etc.
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Origin of glycerol

glycer(in) –ol