Noun: eohippus ,ee-ow'hi-pus
- Earliest horse; extinct primitive dog-sized four-toed Eocene animal
"Eohippus fossils provide insight into early horse evolution";
- dawn horse
Derived forms: eohippuses
Type of: Equus caballus, horse, hoss [US, informal]
Part of: genus Hyracotherium, Hyracotherium
Encyclopedia: Eohippus