Platinous

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Platinous \Plat"i*nous\, a. (Chem.)
     Of, pertaining to, or containing, platinum; -- used
     specifically to designate those compounds in which the
     element has a lower valence, as contrasted with the
     {platinic} compounds; as, platinous chloride ({PtCl2}).
     [1913 Webster]