epi·zoa /ˌɛpəˈzoə/ 名詞 複數
Ep·i·zo·ön n.; pl. Epizoa Zoöl. One of the artificial group of invertebrates of various kinds, which live parasitically upon the exterior of other animals; an ectozoön. Among them are the lice, ticks, many acari, the lerneans, or fish lice, and other crustaceans.
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epizoan
adj : of or relating to epizoa [syn: ectozoan]
n : any external parasitic organism (as fleas) [syn: ectoparasite,
ectozoan, ectozoon, epizoon]
[also: epizoa (pl)]