oxide

noun

ox·​ide ˈäk-ˌsīd 

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

oxidic

äk-ˈsi-dik 

adjective

Examples of oxide in a Sentence

Recent Examples on the Web

The material exhibited four times the ionic conductivity of conventional polyethylene oxide (PEO) electrolytes. — Georgina Jedikovska, Interesting Engineering, 26 Aug. 2026

Some colors emerged instantly, but others, such as blues and greens, developed later over the initial red or brown copper oxides. — Encyclopedia Britannica, 19 Aug. 2026

Then, in 2005, Beijing abolished export tax rebates for rare earths and, in 2007, officially implemented a ten percent export tariff on all rare-earth ores, oxides, and compounds. — Gloria Xiong, Foreign Affairs, 18 Aug. 2026

Sustainability initiatives With the ship redo, Windstar added more energy efficient engines that reduce emissions of nitrous and sulfur oxides Advanced wastewater treatment systems were also installed. — Condé Nast, Condé Nast Traveler, 12 Aug. 2026

Word History

Etymology

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

First Known Use

1788, in the meaning defined above

Phrases Containing oxide

• aluminum oxide
• calcium oxide
• deuterium oxide
• ethylene oxide
• ferric oxide
• iron oxide
• lead oxide
• magnesium oxide
• nitric oxide
• nitrogen oxide
• nitrous oxide
• zinc oxide

Rhymes for oxide

• abide
• allied
• applied
• aside
• astride
• azide
• backside
• bankside
• bastide
• bayside
• bedside
• belied

Kids Definition

oxide

noun

ox·​ide ˈäk-ˌsīd 

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

Medical Definition

oxide

noun

ox·​ide ˈäk-ˌsīd 

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