Science Dictionary
antibiosis   (ān'tē-bī-ō'sĭs, ān'tī-)  Pronunciation Key 
  1. An association between two or more organisms that is detrimental to at least one of them. Allelopathy (the production of chemicals by one plant species that inhibit the growth of another) is an example of antibiosis.

  2. The antagonistic association between an organism and the metabolic substances produced by another.

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