/noor'oh fuy broh'meuh toh"sis, nyoor'-/ , 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.
[ 1895-1900; neurofibromat-, s. of neurofibroma NEUROFIBROMA + -OSIS ]