Definition of hyracotherium in English:


Syllabification: hy·ra·co·the·ri·um
Pronunciation: /ˌhīrəkōˈTHirēəm


The earliest fossil ancestor of the horse. It was a small forest animal of the Eocene epoch, with four toes on the front feet and three on the back. Also called eohippus.
  • Genus Hyracotherium, family Equidae
More example sentences
  • The hyracotherium was a small fox-sized four-toed creature, similar to the modern day hyrax.
  • Scientists now believe that the hyracotherium ate meat and lived in the forest.
  • A close look at the teeth of hyracotherium, reveals a simple pattern of bumps and ridges on their chewing surfaces.


modern Latin: from hyraco- (combining form from hyrax) + Greek thērion 'wild animal'.

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