Examples from the Web for selenium
He was also the person who first identified silicon, selenium, thorium, and serium.
When the bridge is balanced, one-half of the current flows through the cell and acts upon the selenium.
The selenium is applied to the cell duly heated: next comes annealing.Inventors at Work|George Iles
If this solution is poured into water, the selenium separates and is thrown down.Cooley's Practical Receipts, Volume II|Arnold Cooley
It occurs still more rarely in the metallic form, or combined with silver, selenium, or chlorine.
The greatest effect of the light would be to annul the resistance of the selenium.
British Dictionary definitions for selenium
Word Origin for selenium
Word Origin and History for selenium
element name, Modern Latin, from Greek selene "moon" (see Selene). Named by Berzelius (1818), on analogy of tellurium, with which it had been at first confused, and which was named for the earth. Despite the -ium ending it is not a metal and a more appropriate name selenion has been proposed.