| facial tic | Involuntary twitching of the facial muscles, sometimes unilateral. Synonym: Bell's spasm, convulsive tic, facial spasm, histrionic spasm, mimic convulsion, mimic spasm, mimic tic, palmus, prosopospasm. (05 Mar 2000) |
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| local tic | A tic of very limited extent, as the winking of an eye or a twitch of a finger. (05 Mar 2000) |