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bihemispheric slow-wave sleep

American  
[bahy-hem-i-sfeer-ik sloh-weyv sleep] / ˈbaɪˌhɛm ɪˈsfɪər ɪk ˈsloʊˈweɪv ˈslip /

noun

Physiology.

  1. a mode of sleep behavior, common for most animal species, including humans, in which both cerebral hemispheres are simultaneously and deeply asleep. BSWS

Etymology

Origin of bihemispheric slow-wave sleep

First recorded in 1995–2000; bi- 1 ( def. ) + hemispheric ( def. )

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.