at·​ra·​zine | \ ˈa-trə-ˌzēn How to pronounce atrazine (audio) \

Definition of atrazine

: 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

Those pesticides included atrazine (26%), chlorpyrifos (59%), cypermethrin (49%), diazinon (60%), and permethrin (46%). Rebekah Tuchscherer, USA TODAY, "Study finds residue of pesticides, antibiotics and growth hormone in non-organic milk," 26 June 2019 Take atrazine, a weed killer that's widely used on agricultural crops (especially corn) as well as on golf courses and residential lawns and along highways. Rachael Moeller Gorman, Good Housekeeping, "Is Your Tap Water Safe?," 15 Aug. 2012 As a control, one field was treated with atrazine before the corn was planted (a full control using no herbicides at all would have been destroyed by weeds without an overwhelming amount of hand weeding). The Economist, "For better or worseSpraying herbicides changes the flavour and nutritional value of crops," 1 Mar. 2018 Atrazine: A herbicide, found within legal limits and above state and national averages. Ian Cummings, kansascity, "How safe is KC area water? You can use this new database to check it," 4 Aug. 2017 Some chemicals of concern include estrogens from birth control pills, the plasticizer bisphenol A, and the herbicide atrazine. National Geographic, "Why Are These Male Fish Growing Eggs?," 3 Feb. 2016 Chemicals such as atrazine, tetrachloroethylene, and ethylene dibromide are known to contaminate drinking water supplies. Laura Grace Weldon, WIRED, "The Future Of Water Is Zuvo," 17 Jan. 2013

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

1959, in the meaning defined above

History and Etymology for atrazine

perhaps from amino + triazine

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Last Updated

8 Jul 2019

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Time Traveler for atrazine

The first known use of atrazine was in 1959

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