Dictionary
e•o•hip•pus
Pronunciation: (ē"ō-hip'us), [key]—
n.
the earliest known horse, a member of the extinct genus
Hyracotherium (
Eohippus), from the early Eocene Epoch of the Northern Hemisphere; a terrier-sized herbivore having four hoofed toes on each forefoot and three on each hind foot, and low-crowned teeth. Also called
dawn horse, hyracotherium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.