Source : Webster's Revised Unabridged Dictionary (1913)

Artiodactylous \Ar`ti*o*dac"ty*lous\, a. (Zo["o]l.)
   Even-toed.

Source : WordNet®

artiodactylous
     adj : of or relating to or belonging to mammals of the order
           Artiodactyla [syn: {artiodactyl}, {even-toed}]