Source : Webster's Revised Unabridged Dictionary (1913)

Savant \Sa`vant"\, n.; pl. {Savants} (F. ?; E. ?). [F., fr.
   savoir to know, L. sapere. See {Sage}, a.]
   A man of learning; one versed in literature or science; a
   person eminent for acquirements.

Source : WordNet®

savant
     n : someone who has been admitted to membership in a scholarly
         field [syn: {initiate}, {learned person}, {pundit}]