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noun pe·ris·so·dac·tyl \pə-ˈri-sə-ˌdak-təl\

Definition of perissodactyl

  1. :  any of an order (Perissodactyla) of nonruminant ungulate mammals (as a horse, a tapir, or a rhinoceros) that usually have an odd number of toes, molar teeth with transverse ridges on the grinding surface, and the posterior premolars resembling true molars



Origin and Etymology of perissodactyl

New Latin Perissodactyla, from Greek perissos excessive, odd in number + daktylos finger, toe

First Known Use: circa 1852

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