atrazine

noun

at·​ra·​zine ˈa-trə-ˌzēn How to pronounce atrazine (audio)
: a photosynthesis-inhibiting persistent herbicide C8H14ClN5 used especially to kill annual weeds and quack grass

Examples of atrazine 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 report specifically takes issue with two weed killers, glyphosate and atrazine. — Matt Fuchs, Time, 5 June 2025 For primarily broadleaf weeds, look for atrazine as the active ingredient. — Larry Figart, Florida Times-Union, 10 Jan. 2026 Annual bluegrass needs a product containing atrazine. — Mary Marlowe Leverette, Southern Living, 19 Feb. 2026 Studies in multiple animals have shown that atrazine, which is primarily manufactured by Syngenta, can act as an endocrine disrupter. — Knvul Sheikh, New York Times, 22 May 2025 See All Example Sentences for atrazine

Word History

Etymology

perhaps from amino + triazine

First Known Use

1959, in the meaning defined above

Time Traveler
The first known use of atrazine was in 1959

Rhymes for atrazine

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Browse Nearby Words

at random
atrazine
a treat
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Cite this Entry

“Atrazine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/atrazine. Accessed 8 Jul. 2026.

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