(1)a drug that produces numbness or stupor; often taken for pleasure or to reduce pain; extensive use can lead to addiction
(2)麻痺か無感覚状態を起こすドラッグ
(3)しばしば楽しみや苦痛を和らげるために用いられる
(4)広範な使用は常習をもたらす場合がある