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

Today, neodymium oxide costs less than $60 per kilogram—around half its 2023 cost—and is forecast to get even cheaper. —Charlie Campbell, Time, 17 June 2025

Zinc—Chiefly as the oxide of sulphate, white solids. —Caroline Fraser june 10, Literary Hub, 10 June 2025

In September 2024, the U.S. Department of Defense invested $4.2 million in Rare Earth Salts, a startup that aims to extract the oxides from domestic recycled products such as fluorescent light bulbs. —Evelyn Cheng, CNBC, 28 May 2025

As part of the deal, the Pentagon will guarantee a minimum price of $110 per kilogram for neodymium-praseodymium oxide (NdPr) produced at the facility for 10 years and agrees to buy 100% of the magnets manufactured by MP Materials. —David Blackmon, Forbes.com, 12 July 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