aluminum oxide

noun

: alumina

Examples of aluminum oxide in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There are also aluminum oxide crystals to gently polish the skin’s surface. — Kiana Murden, Vogue, 12 Dec. 2025 Conventional Josephson-junction materials, most notably aluminum oxide, didn’t scale down well. — IEEE Spectrum, 15 May 2024 While satellite launches mostly produce black carbon, which has a potential to warm the upper atmosphere, satellite re-entries generate aluminum oxides, which can damage the ozone layer. — Tereza Pultarova, Space.com, 18 May 2026 Threats to the ozone layer continue, from, for example, chlorine-containing molecules emitted by massive wildfires and aluminum oxide produced when satellites and other space objects burn up upon reentry into the atmosphere. — Andrea Thompson, Scientific American, 22 Apr. 2026 See All Example Sentences for aluminum oxide

Word History

First Known Use

1869, in the meaning defined above

Time Traveler
The first known use of aluminum oxide was in 1869

Rhymes for aluminum oxide

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Browse Nearby Words

aluminum hydrate
aluminum oxide
aluminum oxynitride
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Cite this Entry

“Aluminum oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aluminum%20oxide. Accessed 8 Jul. 2026.

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Kids Definition

aluminum oxide

noun
: alumina

Medical Definition

aluminum oxide

noun
: alumina

More from Merriam-Webster on aluminum oxide

Britannica.com: Encyclopedia article about aluminum oxide

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