silicon dioxide

noun

: silica

Examples of silicon dioxide 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.
For example, silicon dioxide has k of about 3.9, and aluminum oxide has k of about 8, twice as high. Mahesh Nepal, The Conversation, 19 Jan. 2026 Silicosis is a long-term lung disease caused by inhaling very tiny crystalline particles of silicon dioxide, or silica, according to the Cleveland Clinic. Vanessa Etienne, PEOPLE, 10 Dec. 2025 Quartz—or more technically, silicon dioxide or silica—is the main component of sand. IEEE Spectrum, 22 Sep. 2025 Amorphous silicon dioxide commonly occurs in foods and supplements, while crystalline silicon dioxide is generally found in industrial settings. Brittany Lubeck, Ms, Rdn, Verywell Health, 19 Sep. 2024 See All Example Sentences for silicon dioxide

Word History

First Known Use

circa 1909, in the meaning defined above

Time Traveler
The first known use of silicon dioxide was circa 1909

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Cite this Entry

“Silicon dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/silicon%20dioxide. Accessed 11 Mar. 2026.

Kids Definition

silicon dioxide

noun
: silica

Medical Definition

silicon dioxide

noun
: silica
Last Updated: - Updated example sentences
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