relaxant
🇺🇸
/rɪˈlæksənt/
🇬🇧
/rɪˈlæksənt/
A substance that helps to calm or relax a person or part of the body.
After a long day at work, she took a relaxant to help her sleep.
仕事が終わった後、彼女は睡眠を助けるためにリラックス剤を飲んだ。