2 definitions
for Equus
From The Collaborative International Dictionary of English v.0.48 :
Equus \E"quus\, n. [L., horse.] (Zo["o]l.)
A genus of mammals, including the horse, ass, etc.
[1913 Webster]
From WordNet (r) 2.0 :
Equus
n : type genus of the Equidae: only surviving genus of the
family Equidae [syn: genus Equus]