from The American Heritage® Dictionary of the English Language, 4th Edition
- n. REM.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Rapid movement of the eyes, characterising REM sleep
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep
Sorry, no etymologies found.