Main Entry: pe·ris·so·dac·tyl

Pronunciation: \pə-ˈri-sə-ˌdak-t^əl\

Function: noun

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

Date: circa 1852

: 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

— perissodactyl adjective