iron oxide

American  

[ahy-ern ahks-ahyd] / ˈaɪ ərn ˈɑks aɪd /

noun

plural

iron oxides

1. an oxide of iron, especially ferric oxide.

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iron oxide Scientific  

1. Any of various oxides of iron, such as ferric oxide or ferrous oxide.

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Other Word Forms

• iron oxidation
  noun
• iron-oxide
  adjective

Example Sentences

By closely examining ferrihydrite, a common iron oxide mineral, engineers discovered that it relies on several distinct chemical processes to capture and hold carbon.

From Science Daily • Feb. 9, 2026

Customs documents said the shipment carried iron oxide when it left the Balkan nation for Thailand.

From Barron's • Feb. 4, 2026

The work, published in Magnetic Medicine, describes a core -- shell structure made from iron oxide nanoparticles wrapped in a thin coating of bioactive glass.

From Science Daily • Jan. 7, 2026

In addition to ferrihydrite the researchers used various quantities of iron oxide phases like magnetite, hematite, feroxyhyte and schwertmannite.

From Salon • Mar. 1, 2025

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

From "The Martian" by Andy Weir