ox·​ide | \ ˈäk-ˌsīd \

Definition of oxide 

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

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Other Words from oxide

oxidic \ äk-​ˈsi-​dik \ adjective

Examples of oxide in a Sentence

Recent Examples on the Web

Hematite—a mineral form of iron-oxide—clay minerals, and boron are the various components of this clue. David Grossman, Popular Mechanics, "Findings in Crater Good Sign for Habitability on Mars," 14 Dec. 2016 The announcement comes as California regulators are pushing for a new ultralow standard for nitrogen-oxide emissions from trucks. Erica E. Phillips, WSJ, "EPA Targets Trucking Industry for New Air Pollution Rules," 13 Nov. 2018 Soot, dust, ozone, and sulfur oxides are a growing threat for billions of people around the world. Umair Irfan, Vox, "Why India’s air pollution is so horrendous," 31 Oct. 2018 His work made batteries more powerful and portable by introducing lithium cobalt oxide to their inner workings. Sarah Mcfarlane, WSJ, "The Battery Pioneer Who, at Age 96, Keeps Going and Going," 9 Aug. 2018 Zinc oxide and titanium oxide are natural alternatives some sunscreens use, still able to block the sun’s harmful UV rays. Renae Reints, Fortune, "Hawaii to Become First in the World to Ban Sunscreens Harmful to the Environment," 2 July 2018 Uranium milled from ore is called yellowcake, technically known as uranium oxide (U3O8). Megan Geuss, Ars Technica, "Attention knitters: Researchers harvest uranium from the sea with a yarn “net”," 18 June 2018 The researchers explain that while commercial wallpaper is highly flammable, both graphene oxide and hydroxyapatite nanowires are fire-resistant materials. Liz Stinson, Curbed, "Scientists are developing wallpaper that can tell when your house is on fire," 11 Apr. 2018 But home-brewers have evolved from simple machines into high-tech appliances, some employing LCD screens, automatic milk frothers or even nitrous-oxide cartridges. Jeremy Repanich, Popular Mechanics, "Single-Serve Coffeemaker Showdown: 8 Brewers Put to the Test," 1 Apr. 2010

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'oxide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of oxide

1788, in the meaning defined above

History and Etymology for oxide

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

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Statistics for oxide

Last Updated

15 Dec 2018

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Time Traveler for oxide

The first known use of oxide was in 1788

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English Language Learners Definition of oxide

chemistry : a compound of oxygen and another substance


ox·​ide | \ ˈäk-ˌsīd \

Kids Definition of oxide

: a compound of oxygen with another element or group of elements an iron oxide


ox·​ide | \ ˈäk-ˌsīd \

Medical Definition of oxide 

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

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More from Merriam-Webster on oxide

Spanish Central: Translation of oxide

Nglish: Translation of oxide for Spanish Speakers

Britannica English: Translation of oxide for Arabic Speakers

Britannica.com: Encyclopedia article about oxide

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