Source : Webster's Revised Unabridged Dictionary (1913)

Heterodont \Het"er*o*dont\, a. [Hetero- + Gr. ?, ? a tooth.]
   (Anat.)
   Having the teeth differentiated into incisors, canines, and
   molars, as in man; -- opposed to homodont.

Heterodont \Het"er*o*dont\, n. (Zo["o]l.)
   Any animal with heterodont dentition.