glyc·er·ol (gl?s??-rôl?, -r?l?)n. A syrupy, sweet, colorless or yellowish liquid triol, C3H8O3, 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.[glycer(in) + -ol.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.glycerol (??l?s??r?l) n (Chemistry) a colourless or pale yellow odourless sweet-tasting syrupy liquid; 1,2,3-propanetriol: a by-product of soap manufacture, used as a solvent, antifreeze, plasticizer, and sweetener (E422). Formula: C3H8O3. Also called (not in technical usage): glycerine or glycerin [C19: from glycer(ine) + -ol1]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014glyc?er?ol (?gl?s ??r?l, -?r?l) n. a colorless liquid, C3H8O3, used as a sweetener and preservative, and in suppositories and skin emollients. [1880?85; glycer (in) + -ol1] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.glyc·er·ol (gl?s??-rôl?) 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. Also called glycerin.The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.