Shirabe
English jmdict
1
noun (common) (futsuumeishi) rapid eye movement;REM
English jmdict
1
noun (common) (futsuumeishi) physics rem (unit of radiation dose)

レム

female given name or forename
English jmnedict
1
Lem;Lemme;Rem;Remu
English jmdict
1
noun (common) (futsuumeishi) REM sleep
REM睡眠中の脳波は起きている時と同じ脳波であり、夢を見るステージです。
The brain waves during REM sleep are the same as when awake, and it's the stage when you have dreams.
Other forms REM睡眠 【レムすいみん】