- Types:
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tremolo
(music) a tremulous effect produced by rapid repetition of a single tone or rapid alternation of two tones
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tremor
shaking or trembling (usually resulting from weakness or stress or disease)
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essential tremor
tremor of unknown cause (usually of the hands and head) that develops in older people; often mistaken for Parkinsonism but is not life-threatening and can usually be kept under control