• synonyms


[glahy-kawl, -kol]
  1. Also called ethylene glycol, ethylene alcohol. a colorless, sweet liquid, C2H6O2, used chiefly as an automobile antifreeze and as a solvent.
  2. Also called diol. any of a group of alcohols containing two hydroxyl groups.
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Origin of glycol

First recorded in 1855–60; glyc(erin) + (alcoh)ol
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for glycol

Historical Examples

  • On boiling with water, it decomposes into glycol and trimethylamine.

    Poisons: Their Effects and Detection

    Alexander Wynter Blyth

  • No glycollic acid, oxalic acid, glycol, or glycerol was produced.

  • Glycol, glī′kol, n. the type of a class of artificial compounds forming chemically a link between alcohol and glycerine.

  • Glycol is heated in a distillery apparatus to 148 C., and a slow current of dry hydrochloric acid passed through it.

British Dictionary definitions for glycol


  1. another name (not in technical usage) for ethanediol, diol
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Derived Formsglycolic or glycollic (ɡlaɪˈkɒlɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

glycol in Medicine


(glīkôl′, -kōl′)
  1. Any of various alcohols containing two hydroxyl groups.
  2. Ethylene glycol.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

glycol in Science


[glīkôl′, -kōl′]
  1. See ethylene glycol.
  2. Any of various alcohols containing two hydroxyl groups (OH).
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.