- Osmious acid
- Osmious Os"mi*ous, a. (Chem.)
Denoting those compounds of osmium in which the element has a
valence relatively lower than in the {osmic} compounds; as,
osmious chloride. [Written also {osmous}.]
[1913 Webster]
{Osmious acid} (Chem.), an acid derived from osmium, analogous to sulphurous acid, and forming unstable salts. It is a brown amorphous substance. [1913 Webster]
The Collaborative International Dictionary of English. 2000.