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    selenium

    selenium - 365bet中国官方网站 definition and meaning for word selenium

    Definition
    (noun) a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
    Synonyms : atomic number 34 , se
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