oxide

American  

[ok-sahyd, -sid] / ˈɒk saɪd, -sɪd /

Also oxid

noun

Chemistry.

1. a compound in which oxygen is bonded to one or more electropositive atoms.

---

oxide British  

/ ˈɒksaɪd /

noun

1. any compound of oxygen with another element

2. any organic compound in which an oxygen atom is bound to two alkyl or aryl groups; an ether or epoxide

---

oxide Scientific  

/ ŏk′sīd′ /

1. A compound of oxygen and another element or radical. Water (H ₂ O) is an oxide.

---

Other Word Forms

• oxidic
  adjective

Etymology

Origin of oxide

First recorded in 1780–90; from French (now oxyde ), blend of ox(ygène) oxygen and (ac)ide acid

Example Sentences

See Examples For:

oxide

Earlier this year, it began producing samarium oxide, a rare earth in high military demand that had also been refined almost exclusively in China.

From The Wall Street Journal ● Oct. 1, 2026

Burnt-sienna vines twist through simmering ocher air, while flora sprout through these roiling masses in hues of chromium oxide and cadmium green.

From The Wall Street Journal ● Sep. 25, 2026

Emissions of carbon monoxide, nitrous oxide and dangerous particulate matter increased by 196%, 111%, and 139% respectively.

From The Wall Street Journal ● Sep. 7, 2026

That insight introduces a new design strategy for solid oxide cells.

From Science Daily ● Aug. 10, 2026

The planet's famous red color is from iron oxide coating everything.

From "The Martian" by Andy Weir