| habit tic | A habitual repetition of some grimace, shrug of the shoulder, twisting or jerking of the head, or the like. (05 Mar 2000) |
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| spasmodic tic | A disorder in which sudden spasmodic coordinated movements of certain muscles or groups of physiologically related muscles occur at irregular intervals. Synonym: Henoch's chorea. (05 Mar 2000) |
| tic | <clinical sign> An involuntary compulsive, repetitive, stereotyped movement, resembling a purposeful movement because it is coordinated and involves muscles in their normal synergistic relationships, tics usually involve the face and shoulders. (18 Nov 1997) |
| tic de pensee | The habit of involuntarily giving expression to any thought that comes to mind. Origin: Fr. Of thought (05 Mar 2000) |
| tic disorders | Sudden, rapid, recurrent, nonrhythmic, stereotyped motor movements or vocalizations. All forms of tics may be exacerbated by stress and attenuated during absorbing activities. They are distinguished from other types of abnormal movements that may accompany general medical conditions. (12 Dec 1998) |
| tic douloureux | A disorder of trigeminal nerve (cranial nerve V) dysfunction. Also called tic douloureux. Characterised by excruciating paroxysms of pain in the lips, gums, cheek or chin, and, very rarely, in the distribution of the eye (ophthalmic division of the trigeminal nerve). (27 Sep 1997) |
| tic-tac rhythm | A condition in which the cadence of the heart sounds resembles that of the foetus, the first and second sounds becoming alike and evenly spaced; a sign of serious myocardial disease. Synonym: pendulum rhythm, tic-tac rhythm, tic-tac sounds. Origin: embryo-+ G. Kardia, heart (05 Mar 2000) |
| tic-tac sounds | A condition in which the cadence of the heart sounds resembles that of the foetus, the first and second sounds becoming alike and evenly spaced; a sign of serious myocardial disease. Synonym: pendulum rhythm, tic-tac rhythm, tic-tac sounds. Origin: embryo-+ G. Kardia, heart (05 Mar 2000) |
| 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) |
| local tic | A tic of very limited extent, as the winking of an eye or a twitch of a finger. (05 Mar 2000) |