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Definitions from WordNet
Noun rem sleep has 1 sense
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Definitions from the WebREM SleepDefinition: REM (Rapid Eye Movement) sleep is a stage of sleep characterized by rapid eye movements, low muscle tone, and vivid, often bizarre dreams. It is the fifth and final stage of the sleep cycle and is associated with increased brain activity and rapid eye movements behind closed eyelids. Examples:
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reluvenate rely rely on rely upon relyea relying relyric rem rem sleep remade remain remain down remain firm remaind remainder remainder remainder of eating
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