レム Also written REM Meanings Noun rapid eye movement; REM Words containing レム レム睡眠 (レムすいみん) REM sleep 入眠時レム期 (にゅうみんじレムき) sleep onset REM period ノンレム睡眠 (ノンレムすいみん) non-REM sleep Jinuma: Japanese Dictionary · Word lists