A surname.

A neurological disorder characterized by a constellation of symptoms that suggest the presence of a lesion in a particular area of the brain.

A very rare, usually familial, fatal neurodegenerative disease, classified as a transmissible spongiform encephalopathy.

(informal) A controversy following the 2007 dismissal of Jeff Gerstmann from his position as Editorial Director of Gamespot, alleged by some to be a consequence of his giving only a mediocre rating to a game that was being heavily advertised on Gamespot at the time.

(mineralogy) An orthorhombic-dipyramidal mineral containing hydrogen, magnesium, manganese, oxygen, silicon, and zinc.