煎せん剤ざいせんざいMeanings1noundecoctionA liquid preparation made by boiling herbs or other substances to extract their essence, used in traditional medicine.漢かん方ぽうでは、生しょう薬やくを煎せんじて煎せん剤ざいを作つくります。In Kampo medicine, crude drugs are boiled to make a decoction.
