Search Result for "platinous": 

The Collaborative International Dictionary of English v.0.48:

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]