Search Result for "eohippus": 
Wordnet 3.0

NOUN (1)

1. earliest horse; extinct primitive dog-sized four-toed Eocene animal;
[syn: eohippus, dawn horse]


The Collaborative International Dictionary of English v.0.48:

Hyracotherium \Hyracotherium\ n. An extinct horse genus, formerly called genus Eohippus. Syn: genus Hyracotherium. [WordNet 1.5]
The Collaborative International Dictionary of English v.0.48:

eohippus \eo*hip"pus\ ([=e]`[-o]*h[i^]p"p[u^]s), n. [Gr. 'hw`s dawn + "ipposhorse.] an extinct primitive dog-sized 4-toed Eocene mammal, the earliest horse known in the line of descent of the modern horse. It is classed in the extinct genus Hydracotherium. Called also dawn horse. Syn: dawn horse. [WordNet 1.5 +PJC]
WordNet (r) 3.0 (2006):

eohippus n 1: earliest horse; extinct primitive dog-sized four-toed Eocene animal [syn: eohippus, dawn horse]