osmous

/ˈɑzməs/
adjective
  1. Relating to or containing osmium in a lower valence state (usually +2 or +3).
    • Osmous compounds are less common than osmic ones in the lab.
    • Osmous salts often have a different color than their osmic counterparts.
    • The chemist studied the properties of osmous chloride.
Antonyms