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Pronunciation: zen'o-bi-ot'ik


  1. A pharmacologically, endocrinologically, or toxicologically active substance not endogenously produced and therefore foreign to an organism.
  2. Pertaining to association of two animal species, usually insects, in the absence of a dependency relationship, as opposed to parasitism.

[xeno- + G. bios, life + -ic]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.