hydroxyl

or hy·drox·y

[ hahy-drok-suhl ]

/ haɪˈdrɒk səl /

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adjective

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Origin of hydroxyl

First recorded in 1865–70; hydr-² + ox(y)-² + -yl

OTHER WORDS FROM hydroxyl

hy·drox·yl·ic

[hahy-drok-sil-ik], /ˌhaɪ drɒkˈsɪl ɪk/, adjective

Words nearby hydroxyl

hydroxybenzene, hydroxybutyric acid, hydroxychloroquine, hydroxyketone, hydroxykynureninuria, hydroxyl, hydroxylamine, hydroxylase, hydroxylate, hydroxyl group, hydroxymethyl

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use hydroxyl in a sentence

This pair is called a hydroxyl group and has a tiny negative charge.
Let’s learn about acids and bases|Bethany Brookshire|February 23, 2021|Science News For Students
Specifically, small compounds called hydroxyl groups, which consist of hydrogen and oxygen atoms, do most of the work.
Fish blood could hold the answer to safer de-icing solutions during snowstorms|By Monika Bleszynski/The Conversation|February 1, 2021|Popular-Science
The assumption was that it was in the form of hydroxyl, which is made of one oxygen atom and one hydrogen atom—a stable molecule that would naturally form in a regolith where oxygen is also present.
NASA Found More Water On the Moon—But Don't Plan On Having a Sip Any Time Soon|Jeffrey Kluger|October 26, 2020|Time
Another toxic component of the fuel was hydroxyl-terminated polybutadiene, a form of rubber.
SpaceShipTwo Flew on Untested Rocket|Dave Majumdar, Clive Irving|October 31, 2014|DAILY BEAST

Those four atoms are called the methyl group, and a methyl group combined with a hydroxyl group forms methyl alcohol.
The Romance of War Inventions|Thomas W. Corbin
First, the hydrogen is displaced by the chlorine: then the chlorine is turned out and its place taken by the hydroxyl.
The Romance of War Inventions|Thomas W. Corbin
It is best detected in acid solutions by the deep brown or iodine colour developed on adding hydroxyl.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
Now these phenols are all more or less acid in character by virtue of the hydroxyl-group which they contain.
Coal|Raphael Meldola
The substitution of a hydrogen atom by the hydroxyl group generally occasions a rise in boiling-point at about 100.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1|Various

British Dictionary definitions for hydroxyl

hydroxyl

/ (haɪˈdrɒksɪl) /

noun

(modifier) of, consisting of, or containing the monovalent group -OH or the ion OH –a hydroxyl group or radical

Derived forms of hydroxyl

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

Medical definitions for hydroxyl

hydroxyl

[ hī-drŏk′sĭl ]

The univalent radical or group OH, a characteristic component of bases, certain acids, phenols, alcohols, carboxylic and sulfonic acids, and amphoteric compounds.

Scientific definitions for hydroxyl

hydroxyl

[ hī-drŏk′sĭl ]

The group OH. Hydroxyl is present in bases, certain acids, hydroxides, and alcohols.