an orange-red, amorphous, water-insoluble powder, Bi 2 O 3 ⋅2CrO 3 , used chiefly as a pigment in paints.
a mineral, bismuth sulfide, Bi 2 S 3 , occurring in lead-gray masses: an ore of bismuth. noun a grey mineral consisting of bismuth sulphide in orthorhombic crystalline form. It occurs in veins associated with tin, copper, silver, lead, etc, and is a source of bismuth. Formula: Bi2S3
a white, crystalline, water-insoluble powder, BiOCl, used chiefly in the manufacture of pigments, face powders, and artificial pearls.
of or containing bismuth, especially in the pentavalent state. adjective of or containing bismuth in the pentavalent state