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allelopathy

[uh-lee-lop-uh-thee, al-uh-lop-]
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noun Botany.
  1. suppression of growth of a plant by a toxin released from a nearby plant of the same or another species.
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Origin of allelopathy

1940–45; < French allélopathie; see allele, -pathy
Related formsal·le·lo·path·ic [uh-lee-luh-path-ik, uh-lel-uh-] /əˌli ləˈpæθ ɪk, əˌlɛl ə-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for allelopathy

allelopathy

noun
  1. the inhibitory effect of one living plant upon another by the release of toxic substances
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Word Origin

from French allélopathie, from Greek allēl- one another + pathos suffering
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

allelopathy in Science

allelopathy

[ə-lē-lŏpə-thē, ăl′ə-]
  1. The inhibition of growth in one plant species by chemicals produced by another. For example, other plants will often not grow underneath black walnut trees, since these trees produce juglone, a chemical inhibiting plant respiration.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.