defoliant

noun
de·​fo·​li·​ant | \ (ˌ)dē-ˈfō-lē-ənt How to pronounce defoliant (audio) \

Definition of defoliant

: a chemical spray or dust applied to plants in order to cause the leaves to drop off prematurely

Examples of defoliant in a Sentence

Recent Examples on the Web The largest group served in the Vietnam era, where 2.8 million veterans were exposed to Agent Orange, a chemical defoliant linked to cancer. Popular Science, "Eight reasons COVID-19 has hit veterans particularly hard," 11 Nov. 2020 The largest group served in the Vietnam era, where 2.8 million veterans were exposed to Agent Orange, a chemical defoliant linked to cancer. Popular Science, "Eight reasons COVID-19 has hit veterans particularly hard," 11 Nov. 2020 The largest group served in the Vietnam era, where 2.8 million veterans were exposed to Agent Orange, a chemical defoliant linked to cancer. Popular Science, "Eight reasons COVID-19 has hit veterans particularly hard," 11 Nov. 2020 In another study, published last year, Jugulam turned her attention to the herbicide 2,4-D, one of the ingredients of Agent Orange, an infamous defoliant used in the Vietnam War. Natasha Gilbert, Wired, "Will Rising Temperatures Make Superweeds Even Stronger?," 19 Dec. 2020 The largest group served in the Vietnam era, where 2.8 million veterans were exposed to Agent Orange, a chemical defoliant linked to cancer. Popular Science, "Eight reasons COVID-19 has hit veterans particularly hard," 11 Nov. 2020 The largest group served in the Vietnam era, where 2.8 million veterans were exposed to Agent Orange, a chemical defoliant linked to cancer. Popular Science, "Eight reasons COVID-19 has hit veterans particularly hard," 11 Nov. 2020 The largest group served in the Vietnam era, where 2.8 million veterans were exposed to Agent Orange, a chemical defoliant linked to cancer. Popular Science, "Eight reasons COVID-19 has hit veterans particularly hard," 11 Nov. 2020 The largest group served in the Vietnam era, where 2.8 million veterans were exposed to Agent Orange, a chemical defoliant linked to cancer. Popular Science, "Eight reasons COVID-19 has hit veterans particularly hard," 11 Nov. 2020

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

1943, in the meaning defined above

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Time Traveler for defoliant

Time Traveler

The first known use of defoliant was in 1943

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Statistics for defoliant

Last Updated

6 Feb 2021

Cite this Entry

“Defoliant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/defoliant. Accessed 2 Mar. 2021.

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More Definitions for defoliant

defoliant

noun

English Language Learners Definition of defoliant

technical : a chemical that is sprayed on plants to make their leaves fall off

More from Merriam-Webster on defoliant

Nglish: Translation of defoliant for Spanish Speakers

Britannica.com: Encyclopedia article about defoliant

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