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

Bloom Energy — Shares rallied more than 13% after American Electric Power exercised an option to buy solid oxide fuel cells for about $2.65 billion. —Michelle Fox,darla Mercado, Cfp®, CNBC, 8 Jan. 2026

Indian state miner Indian Rare Earths (IREL) produces 1,300–1,500 tons of neodymium oxide annually and by friend shoring India the EU can ride itself out of a supply squeeze from China. —Karan Kashyap, Forbes.com, 7 Jan. 2026

High-purity rare earth oxides The initial phase of the partnership aims for the rapid production of high-purity, separated magnet rare earth oxides within the United States. —Aman Tripathi, Interesting Engineering, 3 Jan. 2026

Borosilicate glass is made of boron oxide and silica. —Kait Hanson, Southern Living, 24 Dec. 2025

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