Dictionary.com
Thesaurus.com
Synonyms

weedkiller

British  
/ ˈwiːdˌkɪlə /

noun

  1. a substance, usually a chemical or hormone, used for killing 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

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:

“For years, communities have fought to end the use of paraquat, a weedkiller associated with negative impacts to human health and wildlife,” said California Secretary for Environmental Protection Yana Garcia in a statement.

From Los Angeles Times ● Aug. 11, 2026

That would be Bayer, which makes the weedkiller Roundup.

From Slate ● Jun. 25, 2026

Bayer has pointed to scientific studies as well as regulatory approvals in the US and the European Union as evidence the weedkiller is safe.

From Barron's ● May 12, 2026

Campaigners are calling for a ban on the use of the weedkiller glyphosate to dry crops at harvest time because of concerns about its impact on human health.

From BBC ● May 6, 2026

Activists are rallying in D.C. to protest the Trump administration’s handling of glyphosate, the weedkiller sold as Roundup.

From The Wall Street Journal ● Apr. 29, 2026

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember new words for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com