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Selenium   /səlˈiniəm/   Listen
Selenium

noun
1.
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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"Selenium" Quotes from Famous Books



... less than three blocks from Benny's Place, and still undetected, when I passed the window. It was a large, cheerful oblong of light, so quite naturally I stopped to investigate, being slightly phototropic, by virtue of the selenium grids in my rectifier cells. I went over and looked in, unobtrusively resting my grapples ...
— B-12's Moon Glow • Charles A. Stearns

... adds the products of his ingenuity to our food and drink, so long will "accidents,'' like the Manchester poisoning, from time to time recur. We now search for arsenic; some other time it is lead, or antimony, or selenium, that will do the mischief. Man does what he can according to his light, but he sees but a little patch of the sky of knowledge, while the plant or the animal building up its body from the plant has learned by inheritance to avoid the assimilation of matters noxious to it. Strictly speaking, ...
— Project Gutenberg Encyclopedia

... "A selenium cell," he explained. "Only when light falls on it does it become a good conductor of electricity. Then ...
— The Exploits of Elaine • Arthur B. Reeve



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