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The Collaborative International Dictionary

Epizoon \Ep`i*zo"["o]n\, n.; pl. Epizoa. [NL., fr. Gr. 'epi` upon + zw^,on animal.] (Zo["o]l.) One of the artificial group of invertebrates of various kinds, which live parasitically upon the exterior of other animals; an ectozo["o]n. Among them are the lice, ticks, many acari, the lerneans, or fish lice, and other crustaceans.


See epizoan

  1. adj. of or relating to epizoa [syn: ectozoan]

  2. n. any external parasitic organism (as fleas) [syn: ectoparasite, ectozoan, ectozoon, epizoon]

  3. [also: epizoa (pl)]