Source : Webster's Revised Unabridged Dictionary (1913)

Neuroma \Neu*ro"ma\, n. [NL. See {Neuro-}, and {-oma}.] (Med.)
   A tumor developed on, or connected with, a nerve, esp. one
   consisting of new-formed nerve fibers.

Source : WordNet®

neuroma
     n : any tumor derived from cells of the nervous system
     [also: {neuromata} (pl)]