nounpl. -·mas, -·mata
a tumor, usually benign, that consists of nerve fibers and connective tissue, caused by an abnormal proliferation of Schwann cells
nounpl. neu·ro·fi·bro·mas, or neu·ro·fi·bro·ma·ta
A benign tumor of the peripheral nerve sheath, usually nonencapsulated and composed of a mixture of cell types including Schwann cells and fibroblasts.
(plural neurofibromas or neurofibromata)
- (medicine) A benign tumor composed of Schwann cells