• (n.) One of the Metazoa.
(met″ә-zo´on) pl. metazo´a an individual organism of the Metazoa.
Met`a·zo'ön noun [ New Latin ] (Zoology) One of the Metazoa. 
metazoa, metazoon Animals are a major group of organisms, classified as the kingdom Animalia or Metazoa. In general they are multicellular, capable of locomotion and responsive to their environment, and feed by consuming other organisms.