barium sulphate barium peroxide • barium sulphide · · · Info · Definitions · Synonyms · Characters · · barium sulphate · · Text Common · · Latin · · Scripts 15 · · Length Definitions · · · (noun) a white insoluble radiopaque powder used as a pigment. Synonyms: barium sulfate, blanc fixe. · · Noun Definition 1 (noun) a white or colorless mineral (BaSO4); the main source of barium. Synonyms: heavy spar, barite, barytes. · · Noun Definition 2 Synonyms · · · barium · · Synonym 1 ba · · Synonym 2 atomic number 56 · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075