: a salt or ester of phosphorous acid

Examples of phosphite 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.
The ptxD gene that allows absorption of phosphite was first isolated by William Metcalf of the University of Illinois. — Lynn Brezosky, San Antonio Express-News, 5 July 2018

Word History

First Known Use

1788, in the meaning defined above

Time Traveler
The first known use of phosphite was in 1788

Cite this Entry

“Phosphite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phosphite. Accessed 27 Sep. 2026.

Medical Definition

phosphite

noun
: a salt or ester of phosphorous acid

More from Merriam-Webster on phosphite

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