osmious

Of or belonging to osmium; specifically, noting an oxid of osmium.

Denoting those compounds of osmium in which the element has a valence relatively lower than in the osmic compounds.

(Chem.), an acid derived from osmium, analogous to sulphurous acid, and forming unstable salts. It is a brown amorphous substance.

Denoting those compounds of osmium in which the element has a valence relatively lower than in the osmic compounds.