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orthodox sleep

noun, Physiology.
dreamless sleep, characterized by a slow alpha rhythm of brain waves and no marked physiological changes.
Origin of orthodox sleep
First recorded in 1965-70 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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orthodox sleep in Medicine

orthodox sleep or·tho·dox sleep (ôr'thə-dŏks')
Sleep characterized by a slow alpha rhythm and the absence of REM.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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