筋きん肉にく弛し緩かん剤ざいきんにくしかんざいMeanings1nounmuscle relaxantMedical term for a drug that reduces muscle tension or spasms.医い者しゃは腰よう痛つうの治ち療りょうに筋きん肉にく弛し緩かん剤ざいを処しょ方ほうした。The doctor prescribed a muscle relaxant for the back pain.