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hydroxyl

or hy·drox·y

[hahy-drok-suh l]
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adjective
  1. containing the hydroxyl group.

Origin of hydroxyl

First recorded in 1865–70; hydr-2 + ox(y)-2 + -yl
Related formshy·drox·yl·ic [hahy-drok-sil-ik] /ˌhaɪ drɒkˈsɪl ɪk/, adjective

hydroxy-

  1. a combining form used in the names of chemical compounds in which the hydroxyl group is present: hydroxyketone.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hydroxy

Historical Examples

  • But along with these three general classes are found all kinds of connecting links: Acid salts, basic salts, hydroxy acids, etc.

    Negro Folk Rhymes

    Thomas W. Talley

  • On boiling with water, they are partially reconverted into the hydroxy acids.


British Dictionary definitions for hydroxy

hydroxy

adjective
  1. (of a chemical compound) containing one or more hydroxyl groups

Word Origin

C19: hydro- + oxy (gen)

hydroxyl

noun
  1. (modifier) of, consisting of, or containing the monovalent group -OH or the ion OH a hydroxyl group or radical
Derived Formshydroxylic, adjective

hydroxy-

combining form
  1. (in chemical compounds) indicating the presence of one or more hydroxyl groups or ions

Word Origin

from hydro- + oxy (gen)
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

hydroxy in Medicine

hydroxy-

pref.
  1. Having, adding, or substituting a hydroxyl radical in a compound:hydroxyapatite.

hydroxyl

(hī-drŏksĭl)
n.
  1. 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.

hydroxy in Science

hydroxy

[hī-drŏksē]
  1. Containing the hydroxyl group (OH).

hydroxyl

[hī-drŏksĭl]
  1. The group OH. Hydroxyl is present in bases, certain acids, hydroxides, and alcohols.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.