Meaning of allelopathy

al•le•lop•a•thy

Pronunciation: (u-lē-lop'u-thē, al"u-lop'-), [key]
— n. Bot.
  1. suppression of growth of a plant by a toxin released from a nearby plant of the same or another species.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.