slow-wave sleep

[ sloh-weyv-sleep ]

  1. a recurrent period of deep sleep, typically totaling five or six hours a night, distinguished by the presence of slow brain waves and by very little dreaming. Abbreviation: SWS: Compare REM sleep.

Origin of slow-wave sleep

First recorded in 1965–70; slow + wave

Words Nearby slow-wave sleep Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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