platinous
C2Adjektiv/US /ˈplætɪnəs/ ˈplătĭnəs; UK /ˈplatɪnəs/ ˈplatĭnəs/
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 .
