glyphosate

noun

glyph·​o·​sate ˈgli-fə-ˌsāt How to pronounce glyphosate (audio)
ˈglī-
: a systemic organophosphate herbicide C3H8NO5P used to control herbaceous and woody weeds especially on croplands

Examples of glyphosate 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.
Some studies associate Roundup’s key ingredient, glyphosate, with cancer. Boston Herald Wire Services, Boston Herald, 17 Jan. 2026 The justices will not resolve the decades-long dispute over whether Roundup’s key ingredient, glyphosate, causes cancer. Los Angeles Times, 16 Jan. 2026 Bayer has maintained that glyphosate, a key ingredient in Roundup, does not cause cancer, and has pointed to research such as the federal government’s Agricultural Health Study. Rachel Frazin, The Hill, 16 Jan. 2026 The chemicals included bisphenol AF (BPAF), perfluorononanoic acid (PFNA), glyphosate, chlordecone, imazalil and dozens more. Andrea Margolis, FOXNews.com, 5 Dec. 2025 See All Example Sentences for glyphosate

Word History

Etymology

perhaps from International Scientific Vocabulary glycine + phosph- + -ate entry 1

First Known Use

1972, in the meaning defined above

Time Traveler
The first known use of glyphosate was in 1972

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Cite this Entry

“Glyphosate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glyphosate. Accessed 6 Feb. 2026.

Last Updated: - Updated example sentences
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