| alternative tremor | A coarse, low frequency (3-8 Hz) pathologic tremor produced by alternating contraction of muscles and their antagonists; seen with Parkinson disease and kinetic predominant action tremor. (05 Mar 2000) |
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| arsenical tremor | A tremor caused by chronic poisoning by arsenic. (05 Mar 2000) |
| ataxic tremor | <neurology> A tremor which arises or which is intensified when a voluntary, coordinated movement is attempted. (18 Nov 1997) |
| benign essential tremor | A benign tremor inherited as a dominant character; it may be a rapid oscillation resembling that seen in thyrotoxicosis, a coarse tremor during rest and inhibited by a voluntary effort, or one which appears only upon movement. Synonym: benign essential tremor, familial tremor. (05 Mar 2000) |
| passive tremor | A coarse, rhythmic tremor, 3-5 Hz frequency, usually confined to hands and forearms, that appears when the limbs are relaxed, and disappears with active limb movements; characteristic of Parkinson disease. Synonym: passive tremor. (05 Mar 2000) |
| volitional tremor | A tremor that can be arrested by a strong effort of the will. Synonym: intention tremor. (05 Mar 2000) |
| resting tremor | A coarse, rhythmic tremor, 3-5 Hz frequency, usually confined to hands and forearms, that appears when the limbs are relaxed, and disappears with active limb movements; characteristic of Parkinson disease. Synonym: passive tremor. (05 Mar 2000) |
| mercurial tremor | A tremor caused by chronic mercury poisoning. (05 Mar 2000) |
| metallic tremor | A tremor caused by poisoning with metal. (05 Mar 2000) |
| persistent tremor | A tremor that is constant, whether the subject is at rest or moving. Synonym: continuous tremor. (05 Mar 2000) |
| physiologic tremor | Fine tremor, 8-13 Hz frequency, which is a normal phenomenon. (05 Mar 2000) |
| coarse tremor | A tremor in which the amplitude is large and the oscillations are usually irregular and slow. (05 Mar 2000) |
| pill-rolling tremor | Resting tremor of the thumb and fingers seen in Parkinson disease. (05 Mar 2000) |
| continuous tremor | A tremor that is constant, whether the subject is at rest or moving. Synonym: continuous tremor. (05 Mar 2000) |
| postural tremor | Tremor present when the limbs or trunk are kept in certain positions and when they are moved actively, usually due to near-synchronous rhythmic bursts in opposing muscle groups. Synonym: static tremor. (05 Mar 2000) |