: a binary compound of oxygen with a more electropositive element or group

Examples of oxide in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
And the oxide's price reportedly surged to about $1,150 a kilogram outside China — roughly 179 times its level two years earlier — compared with about $9 a kilogram inside the country. — Anniek Bao, CNBC, 4 Nov. 2026 Along with heme, the study authors found the bone contained traces of manganese oxides, minerals that may have further helped stabilize and preserve the cells. — Taylor Nicioli, CNN Money, 3 Nov. 2026 In a separate development last month, Bulgarian company AuroraCell introduced a 48-volt residential storage system based on sodium-ion chromium oxide cathode technology. — Aman Tripathi, Interesting Engineering, 2 Nov. 2026 The e-nose takes the form of a circular circuit board carrying six metal-oxide semiconductor gas sensors. — New Atlas, 1 Nov. 2026 See All Example Sentences for oxide

Word History

Etymology

French oxide, oxyde, from ox- (from oxygène oxygen) + -ide (from acide acid)

First Known Use

1788, in the meaning defined above

Time Traveler
The first known use of oxide was in 1788

Cite this Entry

“Oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxide. Accessed 13 Nov. 2026.

Kids Definition

: a compound of oxygen with another element or a chemical group

Medical Definition

: a binary compound of oxygen with a more electropositive element or chemical group

More from Merriam-Webster on oxide

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!