-zoa

1.
a combining form meaning “animals,” “organisms” of the kind specified by the initial element, used in the names of classes in zoology:
Protozoa.
Origin
< Neo-Latin < Greek zôia, plural of zôion animal; see zoon
British Dictionary definitions for -zoa

-zoa

suffix
1.
indicating groups of animal organisms: Metazoa
Word Origin
from New Latin, from Greek zōia, plural of zōion animal, living being