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rapid eye movement

noun
1.
rapidly shifting, continuous movements of the eyes beneath closed lids during the stage of sleep characterized by dreaming.
Also called REM.
Origin
1915-1920
1915-20
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for rapid eye movement

rapid eye movement

noun
1.
movement of the eyeballs under closed eyelids during paradoxical sleep, which occurs while the sleeper is dreaming REM
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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rapid eye movement in Medicine

rapid eye movement n.

Abbr. REM The rapid periodic jerky movement of the eyes during certain stages of the sleep cycle when dreaming takes place.

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