hydroxyl

or hy·drox·y

[ hahy-drok-suh l ]

/ haɪˈdrɒk səl /

adjective

Nearby words

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

Origin of hydroxyl

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

Related forms

hy·drox·yl·ic

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hydroxyl

Solutions of pure hypochlorites are alkaline in reaction because of the excess of hydroxyl ions (minimum concentration 1 × 10-4).
Chlorination of Water|Joseph Race
When the glucosides are hydrolyzed, they yield glucose and the hydroxyl compound of the radical with which it is united.
The Chemistry of Plant Life|Roscoe Wilfred Thatcher
The alkaline, or soapy taste, is the perception of hydroxyl radicles charged with negative electricity.
Creative Chemistry|Edwin E. Slosson
The hydrogen of the hydroxyl group in phenol can be replaced by metals, by alkyl groups and by acid radicals.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3|Various

The basic character of a solution is determined by the presence of the hydroxyl radical OH-.
The Mechanism of Life|Stphane Leduc

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

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

Medicine definitions for hydroxyl

hydroxyl

[ 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.

Science definitions for hydroxyl

hydroxyl

[ hī-drŏk′sĭl ]

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