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Selenium   Listen
noun
Selenium  n.  (Chem.) A nonmetallic element of the sulphur group of atomic number 34, analogous to sulphur in its compounds. It is found in small quantities with sulphur and some sulphur ores, and obtained in the free state as a dark reddish powder or crystalline mass, or as a dark metallic-looking substance. It exhibits under the action of light a remarkable variation in electric conductivity, and is used in certain electric apparatus. Symbol Se. Atomic weight 78.96.






Collaborative International Dictionary of English 0.48








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Words linked to "Selenium" :   atomic number 34, iron pyrite, selenium cell, fool's gold, element



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