TIC

Tic (?), n. [] (Med.) A local and habitual convulsive motion of certain muscles; especially, such a motion of some of the muscles of the face; twitching; velication; — called also spasmodic tic. Dunglison. Tic douloureux (�). [[F., fr. tic a knack, a twitching + douloureux painful.]] (Med.) Neuralgia in the face; face ague. See under Face.