Source : Webster's Revised Unabridged Dictionary (1913)

Dentition \Den*ti"tion\, n. [L. dentitio, fr. dentire to cut
   teeth, fr. dens, dentis, tooth. See {Dentist}.]
   1. The development and cutting of teeth; teething.

   2. (Zo["o]l.) The system of teeth peculiar to an animal.

Source : WordNet®

dentition
     n 1: the eruption through the gums of baby teeth [syn: {teething},
           {odontiasis}]
     2: the kind and number and arrangement of teeth (collectively)
        in a person or animal [syn: {teeth}]