柯林斯詞典barium sulphate 1. N a white insoluble fine dense powder, used as a pigment, as a filler for paper, rubber, etc, and in barium meals. Formula: BaSO4 硫酸鋇 (Also called blanc fixe) 返回 barium sulphate劍橋詞典a chemical used in industry and medicine 硫酸鋇 返回 barium sulphate