iron oxide

noun

Definition of iron oxide

: 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 Of course, red pigment will always be available some way or another; the right shade of red can be produced with any source of iron oxide and already lots of synthetic and almost identical variations are on the market. Clarissa Wei, Smithsonian Magazine, "Why Are All Swedish Cottages Painted Red?," 25 Sep. 2020 Over time, the iron weathers to form iron oxide, which is the base for the unique pigment. Clarissa Wei, Smithsonian Magazine, "Why Are All Swedish Cottages Painted Red?," 25 Sep. 2020 Your steel may look shiny after knocking the visible rust off, but there’s still some iron oxide there. Ben Wojdyla, Popular Mechanics, "How to Prevent and Remove Rust on Your Car Like a Pro," 8 Sep. 2020 This is because iron oxide molecules are physically bigger than those of iron or steel. Ben Wojdyla, Popular Mechanics, "How to Prevent and Remove Rust on Your Car Like a Pro," 8 Sep. 2020 Also, because iron oxide comes in red, yellow and brown, these stains are available in wood tones only. Washington Post, "South-facing wood should be finished with paint, not varnish," 7 Sep. 2020 Rust, which is also known as iron oxide, gives Mars its reddish color. Chris Ciaccia, Fox News, "The moon is 'rusting' and scientists are stunned," 6 Sep. 2020 One idea is to harness red mud, which is typically 40% to 70% iron oxide, to make iron-rich cements. Robert F. Service, Science | AAAS, "Red mud is piling up. Can scientists figure out what to do with it?," 20 Aug. 2020 The dunes in the area had a soft red hue due to iron oxide in the sand, which soaked up the sun's energy and held it. Richard Mason, Arkansas Online, "Warm memories of the Sahara," 23 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'iron oxide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of iron oxide

1790, in the meaning defined above

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Time Traveler for iron oxide

Time Traveler

The first known use of iron oxide was in 1790

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Statistics for iron oxide

Last Updated

13 Oct 2020

Cite this Entry

“Iron oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/iron%20oxide. Accessed 25 Oct. 2020.

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More Definitions for iron oxide

iron oxide

noun

Medical Definition of iron oxide

: any of several oxides of iron especially : ferric oxide

More from Merriam-Webster on iron oxide

Britannica.com: Encyclopedia article about iron oxide

Comments on iron oxide

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