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Denotation vs. Connotation

hydroxyl

or hydroxy

[hahy-drok-suh l] /haɪˈdrɒk səl/
adjective
1.
containing the hydroxyl group.
Origin of hydroxyl
1865-1870
1865-70; hydr-2 + ox(y)-2 + -yl
Related forms
hydroxylic
[hahy-drok-sil-ik] /ˌhaɪ drɒkˈsɪl ɪk/ (Show IPA),
adjective
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for hydroxyl

hydroxyl

/haɪˈdrɒksɪl/
noun
1.
(modifier) of, consisting of, or containing the monovalent group -OH or the ion OH: a hydroxyl group or radical
Derived Forms
hydroxylic, 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
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hydroxyl in Medicine

hydroxyl hy·drox·yl (hī-drŏk'sĭl)
n.
The univalent radical or group OH, a characteristic component of bases, certain acids, phenols, alcohols, carboxylic and sulfonic acids, and amphoteric compounds.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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hydroxyl in Science
hydroxyl
  (hī-drŏk'sĭl)   
The group OH. Hydroxyl is present in bases, certain acids, hydroxides, and alcohols.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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