trigeminal neuralgia

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Paroxysmal shooting pains of the facial area around one or more branches of the trigeminal nerve, of unknown cause, but often precipitated by irritation of the affected area.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A neuropathic disorder of one or both of trigeminal nerves leading to intense pain in parts of the face.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun intense paroxysmal neuralgia along the trigeminal nerve