hyraci-, hyraco-(before a vowel hyrac-), Lat. and Gr. comb. forms respectively of hyrax. hyraciform|haɪˈræsɪfɔːm|a.[see -form], resembling a hyrax; hyracoid. hyracodont|haɪˈrækədɒnt|a.[Gr. ὀδοντ- tooth], having the dentition characteristic of the genus Hyrax, and found also in the Rhinoceros and the extinct Hyracodon, a rhinoceros-like perissodactyl of the Lower Miocene of North America.