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Synonyms

herbicide

American  
[hur-buh-sahyd, ur-] / ˈhɜr bəˌsaɪd, ˈɜr- /

noun

  • herbicides
    plural
  1. a substance or preparation for killing plants, especially weeds.


herbicide British  
/ ˈhɜːbɪˌsaɪd /

noun

  1. a chemical that destroys plants, esp one used to control weeds

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

herbicide Scientific  
/ hûrbĭ-sīd′,ûr- /
  1. A pesticide used to kill weeds. Paraquat is a herbicide.

  2. Compare fungicide insecticide rodenticide


Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of herbicide

First recorded in 1895–1900; herb + -i- + -cide

Explanation

A chemical that's used on lawns or gardens to kill weeds is an herbicide. When herbicides are used on food crops, they target unwanted plants but leave the crops unharmed. Some towns and cities have banned certain herbicides, fearing that they're not safe for humans, pets, and other animals. In many instances, herbicides are seen as a necessity for growing large crops or controlling invasive weeds that threaten structures as well as lawns and gardens. The word herbicide comes from the Latin roots herba, "grass, turf, or vegetation," and the suffix -cide, "killer."

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Vocabulary lists containing herbicide

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

An additional 15 strains came from feedlots and agricultural soils affected by herbicide use.

From Science Daily Jun. 23, 2026

This week, Foley announced that the Orange County Public Works Department had begun a “pause” of herbicide spraying in flood channels countywide.

From Los Angeles Times May 15, 2026

One of its new products is a camera that can distinguish between a plant and a weed, reducing herbicide use and saving farmers money.

From Barron's May 6, 2026

Durnell and other plaintiffs argue the company should go further in how it warns farmers and landscapers of the risks the herbicide may pose.

From The Wall Street Journal Apr. 27, 2026

Also, organic cows, like Rosie the organic chicken, are never fed corn that contains residues of atrazine, the herbicide commonly sprayed on American cornfields.

From "The Omnivore's Dilemma" by Michael Pollan

They also tested resistance to pure glyphosate and glyphosate-based herbicides, which are among the most widely used weedkillers worldwide.

From Science Daily Jun. 23, 2026

In March, county Supervisor Katrina Foley told residents the county would halt spraying of herbicides in two creeks near Doheny State Beach.

From Los Angeles Times May 15, 2026

Farmer Dave Bell, chair of the Voluntary Initiative for the use of Plant Protection, told BBC Radio 4's Today programme that he relies on herbicides like glyphosate.

From BBC May 6, 2026

Chief Justice John Roberts expressed openness to Bayer’s argument that federal law is designed to create uniformity in the labeling of herbicides.

From The Wall Street Journal Apr. 27, 2026

The other set was grown conventionally with chemical fertilizer, pesticides, and herbicides.

From "The Omnivore's Dilemma" by Michael Pollan

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