glyph·​o·​sate | \ ˈgli-fə-ˌsāt How to pronounce glyphosate (audio) , ˈglī-\

Definition of glyphosate

: 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

Bayer’s shares have lost roughly a third of their value since a San Francisco jury verdict in August found that Monsanto’s Roundup weedkillers, which contain the chemical glyphosate, were responsible for causing cancer in a man. Ruth Bender, WSJ, "Bayer to Cut 12,000 Jobs, Shed Coppertone and Dr. Scholl’s Brands," 29 Nov. 2018 No large-scale study has found any link between glyphosate and the decline of the honeybee population. Zoe Szathmary, Fox News, "Popular weed killer may be to blame for honey bee deaths, study suggests," 25 Sep. 2018 Such weeds have developed resistance to glyphosate, the herbicide marketed by Bayer under the Roundup brand. Jacob Bunge, WSJ, "China’s GMO Ruling Hands U.S. Farmers New Tool in Battle Against Weeds," 8 Jan. 2019 The active ingredient in this weedkiller is an herbicide known as glyphosate. Yvette D'entremont, SELF, "Should You Worry About Herbicides In Your Food?," 10 Oct. 2018 Bayer has repeatedly pointed to scientific evidence and regulatory decisions that established glyphosate was safe to use. Donato Paolo Mancini, WSJ, "Bayer Shares Jump After Monsanto Weedkillers Court Ruling," 4 Jan. 2019 Monsanto argues that numerous scientific studies and the U.S. Environmental Protection Agency have found glyphosate to be safe. Paul Elias, The Seattle Times, "Monsanto weed killer ruling is 1st step in long legal battle," 23 Oct. 2018 Bayer shares have lost roughly 30% since the jury ruled Monsanto weedkillers containing the chemical glyphosate had caused the plaintiff’s cancer. Ruth Bender, WSJ, "Bayer Lays Out Plans in Hopes of Easing Investor Headaches," 5 Dec. 2018 All of the seemingly high-glyphosate-containing products were conventional, not organic. Yvette D'entremont, SELF, "Should You Worry About Herbicides In Your Food?," 10 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'glyphosate.' 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 glyphosate

1972, in the meaning defined above

History and Etymology for glyphosate

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

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Last Updated

11 Mar 2019

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The first known use of glyphosate was in 1972

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grandiloquent, ostentatious, or bombastic

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