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[mon-ok-sahyd, muh-nok-] /mɒnˈɒk saɪd, məˈnɒk-/
noun, Chemistry.
an oxide containing one oxygen atom in each molecule.
Origin of monoxide
First recorded in 1865-70; mon- + oxide Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for monoxide


an oxide that contains one oxygen atom per molecule: carbon monoxide, CO
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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Word Origin and History for monoxide

"oxide with one oxygen atom in each molecule," 1869, from mono- + oxide.

Online Etymology Dictionary, © 2010 Douglas Harper
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monoxide in Medicine

monoxide mon·ox·ide (mə-nŏk'sīd')
An oxide with each molecule containing one oxygen atom.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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monoxide in Science
A compound consisting of two elements, one of which is a single oxygen atom. Carbon monoxide, for example, contains a carbon atom bound to a single oxygen atom.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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