Also found in: Medical.
suffix forming plural proper nouns
(Zoology) indicating groups of animal organisms: Metazoa.
[from New Latin, from Greek zōia, plural of zōion animal, living being]
a combining form meaning “animals,” “organisms” of the kind specified by the initial element, used in the names of various taxonomic divisions of the animal kingdom: Metazoa.
[< New Latin < Greek zôia, pl. of zôion animal; see zoon]