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 And that’s before Rogan starts talking about atrazine, the chemical that Alex Jones claimed turns frogs gay. Joseph Hudak, Rolling Stone, 30 Aug. 2023 Biologist Tyrone Hayes studied 40 male control tadpoles along with 40 male tadpoles reared in water tainted with atrazine. Smriti Rao, Discover Magazine, 2 Mar. 2010 This is not the first time that Hayes has found atrazine to be wreaking havoc on male frogs. Smriti Rao, Discover Magazine, 2 Mar. 2010 And Roundup Ready crops have allowed glyphosate to almost completely replace atrazine on those fields. Keith Kloor, Discover Magazine, 13 Apr. 2013 Frogs and other amphibians are particularly vulnerable to chemicals like atrazine because of their absorbent skins. Ed Yong, Discover Magazine, 2 Mar. 2010 One such concern is atrazine, one of the world’s most common herbicides, which is also known for turning some male frogs into females. Caitlin Looby, Journal Sentinel, 10 Feb. 2023 Some 64 weed species are resistant to the herbicide atrazine, for example, and no crops have been genetically modified to withstand it. Christie Wilcox, Discover Magazine, 1 May 2013 That means the wallabies are more vulnerable to external threats, such as chemical pollutants, and are likely to more clearly show effects of things like atrazine exposure, writes Corryn Wetzel for Nat Geo. National Geographic, 10 Sep. 2020 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'atrazine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


perhaps from amino + triazine

First Known Use

1959, in the meaning defined above

Time Traveler
The first known use of atrazine was in 1959

Dictionary Entries Near atrazine

Cite this Entry

“Atrazine.” Dictionary, Merriam-Webster, Accessed 3 Dec. 2023.

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