[ hahy-drok-sahyd, -sid ]

  1. a chemical compound containing the hydroxyl group.

Origin of hydroxide

First recorded in 1820–30; hydr-2 + oxide

Words Nearby hydroxide

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use hydroxide in a sentence

British Dictionary definitions for hydroxide


/ (haɪˈdrɒksaɪd) /

  1. a base or alkali containing the ion OH

  2. any compound containing an -OH group

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

Scientific definitions for hydroxide


[ hī-drŏksīd′ ]

  1. A chemical compound containing one or more hydroxyl radicals (OH). Inorganic hydroxides include hydroxides of metals, some of which, like sodium hydroxide (caustic soda) and calcium hydroxide, are strong bases that are important industrial alkalis. Some metal hydroxides, such as those of zinc and lead, are amphoteric (they act like both acids and bases). Organic hydroxides include the alcohols.

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