Orohippus

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Orohippus \Or`o*hip"pus\, n. [NL., fr. Gr. 'o`ros, mountain
     (referring to the Rocky Mountain region) + "i`ppos horse.]
     (Paleon.)
     A genus of American Eocene mammals allied to the horse, but
     having four toes in front and three behind.
     [1913 Webster]