അർത്ഥം : A recurring sleep state during which dreaming occurs. A state of rapidly shifting eye movements during sleep.
പര്യായപദങ്ങൾ : paradoxical sleep, rapid eye movement, rapid eye movement sleep, rem sleep
അർത്ഥം : (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.