hyracotherium

from WordNet (r) 3.0 (2006)
Hyracotherium
    n 1: extinct horse genus; formerly called eohippus [syn:
         {Hyracotherium}, {genus Hyracotherium}]
    
from 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]
    

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