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rapid eye movement
rap·id eye move·ment


noun 
Definition:
 
jerky eye movements while asleep: jerky movements of the eyeballs while the eyes are closed, characteristic of somebody who is dreaming while asleep, especially during REM sleep
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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