Source : Webster's Revised Unabridged Dictionary (1913)

Dentist \Den"tist\, n. [From L. dens, dentis, tooth: cf. F.
   dentiste. See {Tooth}.]
   One whose business it is to clean, extract, or repair natural
   teeth, and to make and insert artificial ones; a dental
   surgeon.

Source : WordNet®

dentist
     n : a person qualified to practice dentistry [syn: {tooth doctor},
          {dental practitioner}]