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slow–wave sleep
noun
Definition of slow–wave sleep
: a state of deep usually dreamless sleep that occurs regularly during a normal period of sleep with intervening periods of REM sleep and that is characterized by delta waves and a low level of autonomic physiological activity
From the M-W Editors
First Known Use of slow–wave sleep
1967
Medical Dictionary
slow–wave sleep
noun
Medical Definition of slow–wave sleep
: a state of deep usually dreamless sleep that occurs regularly during a normal period of sleep with intervening periods of REM sleep and that is characterized by delta waves and a low level of autonomic physiological activity—called also non-REM sleep, NREM sleep, orthodox sleep, S sleep, synchronized sleep
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