myoclonus.

Sudden, brief involuntary jerking of a muscle or muscle group.

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Words that belong together

• sleep myoclonus

On the page

Myoclonus jerked her hand away from the cup.

The monitor recorded repeated myoclonus.

Usage notes

Primary category: horror. Forms: Usually uncountable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.