煎せんじ薬ぐすりせんじぐすりMeanings1noundecoction; infusionA liquid medicine made by boiling or steeping herbs or other substances; used in traditional medicine contexts.漢かん方ぽうでは、煎せんじ薬ぐすりを毎まい日にち飲のむように言いわれた。In Kampo medicine, I was told to drink a decoction every day.