English Dictionary

Pertaining to, or resembling, an animal.
Source : opted (175910)  - auto

An organic body or cell having locomotion, as a spermatic cell or spermatozooid.
Source : opted (175911)  - auto

An animal in one of its inferior stages of development, as one of the intermediate forms in alternate generation.
Source : opted (175912)  - auto

One of the individual animals in a composite group, as of Anthozoa, Hydroidea, and Bryozoa; -- sometimes restricted to those individuals in which the mouth and digestive organs are not developed.
Source : opted (175913)  - auto