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

This coating is made up of a hafnium oxide layer frosted with a thin topping of zirconia oxide. —IEEE Spectrum, 28 July 2025

This lightweight undereye cream targets puffiness and dark circles with a blend of vitamin K oxide, hyaluronic acid, and peptides. —Christa Joanna Lee, Glamour, 23 July 2025

This tower then redirects the concentrated sunlight downward to heat a solar reactor that contains particles of a mineral oxide called ceria – or rather, a doped version of it. —Abhimanyu Ghoshal, New Atlas, 23 June 2025

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

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