/ Dictionary / Index N neurofibromatosis: Meaning and Definition of Find definitions for: neu•ro•fi•bro•ma•to•sis Pronunciation: (noor"ō-fī-brō"mu-tō'sis, nyoor"-), [key] — n. Pathol. a dominantly inherited genetic disorder characterized by flat brown patches on the skin, neurofibromas of the skin and internal organs, and in some cases skeletal deformity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: neurofibromatosis (Thesaurus) neurofibroma neurogenic Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language