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diol

[dahy-awl, -ol]
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noun Chemistry.
  1. glycol(def 2).
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Origin of diol

First recorded in 1920–25; di-1 + -ol1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for diol

diol

noun
  1. chem any of a class of alcohols that have two hydroxyl groups in each moleculeAlso called: glycol, dihydric alcohol
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Word Origin

from di- 1 + (alcoh) ol
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
diol in Science

diol

[dī′ôl, -ŏl]
  1. An alcohol containing two hydroxyl groups per molecule.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.