Definition of eohippus in US English:

eohippus

noun

  • another term for hyracotherium
    • ‘‘We suspect that an intermediate version of the horse between eohippus and equus probably did exist, and that fossils of these intermediates probably do, in fact, exist.’’

Origin

Late 19th century: from Greek ēōs ‘dawn’ + hippos ‘horse’.

Pronunciation

eohippus

/ˌēōˈhipəs/