皂碱 Traditional form: 皂鹼 Pinyin (reading): zàojiǎn Definitions: soap same as 肥皂 Characters: 皂 - soap; black; menial servant 碱 - alkaline, alkali, lye, salt Traditional characters: 皂 - soap; black; menial servant 鹼 - alkaline, alkali, lye, salt