See Also: prototherian(dictionary)

prototherian (iou)



prototherian adjective & noun. L19.
[from mod. Latin Prototheria (see below), formed as PROTO- + Greek therion wild animal: see -AN.]
Zoology. (Pertaining to or designating) an animal of the infraclass Prototheria of mammals, which comprises the order Monotremata and related fossil forms.