| metazoon | <zoology> One of the Metazoa. Source: Websters Dictionary (01 Mar 1998) |
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| metazoonosis | A zoonosis that requires both a vertebrate and an invertebrate host for completion of its life cycle; e.g., the arbovirus, infections of humans and other vertebrates. Origin: meta-+ G. Zoon, animal, + nosos, disease (05 Mar 2000) |