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argentous

American  
[ahr-jen-tuhs] / ɑrˈdʒɛn təs /

adjective

Chemistry.
  1. containing univalent silver, as argentous chloride, AgCl.


argentous British  
/ ɑːˈdʒɛntəs /

adjective

  1. chem of or containing silver in the monovalent 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 argentous

First recorded in 1865–70; argent- + -ous