Found 2 items, similar to eohippus.
English → English (WordNet) Definition: eohippus eohippus n : earliest horse; extinct primitive dog-sized 4-toed Eocene animal [syn: dawn horse]
English → English (gcide) Definition: eohippus 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]