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selenious

American  
[si-lee-nee-uhs] / sɪˈli ni əs /

adjective

Chemistry.
  1. containing tetravalent or bivalent selenium.


selenious British  
/ sɪˈliːnɪəs, sɪˈliːnəs /

adjective

  1. of or containing selenium in the divalent or tetravalent state

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of selenious

First recorded in 1825–35; seleni(um) + -ous