Perissodactyla

noun plural
Pe·ris·so·dac·tyla | \pə-ˌris-ə-ˈdak-tə-lə \

Medical Definition of Perissodactyla 

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

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