-zoon

-zoon

suff. Animal; independently moving organic unit: spermatozoon.
[New Latin -zōon, from Greek zōion, zōon, living being; see gwei- in Indo-European roots.]

-zoon

n combining form (Biology) indicating an individual animal or an independently moving entity derived from an animal: spermatozoon. [from Greek zōion animal]

-zoon

a combining form meaning “animal,” “organism” of the kind specified by the initial element, often corresponding to zoological taxa ending in -zoa, with -zoon used to name a single member of such a class: protozoon. [< New Latin zōon < Greek zôion animal]