ectozoon: Meaning and Definition of

ec•to•zo•on

Pronunciation: (ek"tu-zō'on, -un), [key]
— pl. -zo•a
  1. any animal parasite, as the louse, that lives on the surface of its host (opposed to entozoon).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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