iron oxide

noun

: any of several oxides of iron: such as
b
: the monoxide FeO of iron

Examples of iron oxide in a Sentence

Recent Examples on the Web
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The mesh coating relies on iron oxide and Nafion, which is a fluoropolymer-copolymer material that is often used in fuel cells. IEEE Spectrum, 15 Jan. 2025 Ingredients like parabens, sodium benzoate, propylene glycol, fragrances, and certain dyes like black iron oxide can all contribute to eye and skin irritation or contact dermatitis. Nicola Dall'asen, Allure, 4 Jan. 2025 The red color of the fire retardant is caused by the chemical component iron oxide, commonly known as rust. Christopher Cann, USA TODAY, 13 Jan. 2025 Although its surface is covered in iron oxide dust, the red planet appears to the naked eye to have a golden-reddish light rather than purely a red light. Jamie Carter, Forbes, 16 Jan. 2025 See All Example Sentences for iron oxide

Word History

First Known Use

1790, in the meaning defined above

Time Traveler
The first known use of iron oxide was in 1790

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Cite this Entry

“Iron oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/iron%20oxide. Accessed 28 Feb. 2025.

Kids Definition

iron oxide

noun
: any of the oxides of iron
especially : ferric oxide

Medical Definition

iron oxide

noun
: any of several oxides of iron
especially : ferric oxide

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