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herbicide

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

noun

  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

  • herbicidal adjective

Etymology

Origin of herbicide

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

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.

The chemicals shown to damage gut bacteria include pesticides such as herbicides and insecticides commonly applied to crops.

From Science Daily

"This is believed to be tied to pesticides and herbicides in food, but also to microplastics," he says.

From Science Daily

The substances found to disrupt microbial growth include pesticides such as herbicides and insecticides used on crops, as well as industrial chemicals present in flame retardants and plastics.

From Science Daily

"Pesticides and herbicides are designed to alter biological systems," said Eugene Lengerich, emeritus professor of public health sciences at Penn State and senior author on the paper.

From Science Daily

He could have been a better player but he played with "fear", a herbicide that stops athletes growing.

From BBC