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(Elements & Compounds) a white insoluble fine dense powder, used as a pigment, as a filler for paper, rubber, etc, and in barium meals. Formula: BaSO4. Also called: blanc fixe
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|Noun||1.||barium sulphate - a white insoluble radiopaque powder used as a pigment|
|2.||barium sulphate - a white or colorless mineral (BaSO4); the main source of barium|
atomic number 56, Ba, barium - a soft silvery metallic element of the alkali earth group; found in barite
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
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