[ 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.

Origin of glycol

First recorded in 1855–60; glyc(erin) + (alcoh)ol

Words Nearby glycol Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use glycol in a sentence

British Dictionary definitions for glycol


/ (ˈɡlaɪkɒl) /

  1. another name (not in technical usage) for ethanediol, diol

Derived forms of glycol

  • glycolic 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

Scientific definitions for glycol


[ glīkôl′, -kōl′ ]

  1. Any of various alcohols containing two hydroxyl groups (OH).

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.