药渣 Traditional form: 藥渣 Pinyin (reading): yàozhā Definitions: dregs of a decoction Characters: 药 - drugs, medicine; the leaf of the Dahurian angelica plant 渣 - dregs, sediment; refuse, slag Traditional characters: 藥 - drugs, medicine; the leaf of the Dahurian angelica plant 渣 - dregs, sediment; refuse, slag