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[hur-buh-sahyd, ur-] /ˈhɜr bəˌsaɪd, ˈɜr-/
a substance or preparation for killing plants, especially weeds.
Origin of herbicide
1895-1900; herb + -i- + -cide
Related forms
herbicidal, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for herbicide
  • Corn gluten meal acts as a preemergence herbicide for lawns and agricultural crops, destroying weeds before they germinate.
  • For chemical control, use a selective postemergence herbicide.
  • For chemical control, use a selective postemergence herbicide labeled for dandelions in turf.
  • For chemical control, you can use a pre-emergence herbicide containing trifluralin around ornamentals.
  • They are at the mercy of government regulations on pesticide, herbicide, water and land use.
  • First there were herbicide-tolerant soybeans and worm-resistant corn.
  • The ag giants are already selling seeds for herbicide-resistant soybeans and insect-fighting corn.
  • herbicide chemistry may not sound particularly inspiring.
  • No herbicides on driveways, garden edges, curb edges and all the other destructive and totally unnecessary herbicide use.
  • There are mostly wildflowers around with no plantations of herbicide or insecticide treatments.
British Dictionary definitions for herbicide


a chemical that destroys plants, esp one used to control weeds
Derived Forms
herbicidal, adjective
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
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Word Origin and History for herbicide

1888, originally a trademark name, from herb + -cide.

Online Etymology Dictionary, © 2010 Douglas Harper
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herbicide in Science
  (hûr'bĭ-sīd', ûr'-)   
A pesticide used to kill weeds. Paraquat is a herbicide. Compare fungicide, insecticide, rodenticide.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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