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amensalism

[ ey-men-suh-liz-uhm ]

noun

Ecology.
  1. a relationship between two species of organisms in which the individuals of one species adversely affect those of the other and are unaffected themselves.


amensalism

/ ā-mĕnsə-lĭz′əm /

  1. A relationship between two organisms in which one organism is harmed or inhibited and the other is unaffected. Examples of amensalism include the shading out of one plant by a taller and wider one and the inhibition of one plant by the secretions of another (known as allelopathy).
  2. Compare commensalism
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Word History and Origins

Origin of amensalism1

Probably a- 6 + (com)mensal + -ism

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amenorrheaament