硫酸钡 Traditional form: 硫酸鋇 Pinyin (reading): liúsuānbèi Definitions: barium sulfate Characters: 硫 - sulfur 酸 - tart, sour; spoiled; acid 钡 - barium Traditional characters: 硫 - sulfur 酸 - tart, sour; spoiled; acid 鋇 - barium