xiphodon

from The Collaborative International Dictionary of English v.0.48
Xiphodon \Xiph"o*don\, n. [Gr. xi`fos a sword + 'odoy`s,
   'odo`ntos, a tooth.] (Paleon.)
   An extinct genus of artiodactylous mammals found in the
   European Tertiary formations. It had slender legs,
   didactylous feet, and small canine teeth.
   [1913 Webster]
    

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