rem   (TTS Sound)

The noun rem has 2 senses

• paradoxical sleep, rapid eye movement sleep, REM sleep, rapid eye movement, REM -- (a recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep)


• REM -- ((Roentgen Equivalent Man) the dosage of ionizing radiation that will cause the same amount of injury to human tissue as 1 roentgen of X-rays)