- OsO4
- Osmic Os"mic, a. (Chem.)
Pertaining to, derived from, or containing, osmium;
specifically, designating those compounds in which it has a
valence higher than in other lower compounds; as, osmic
oxide.
[1913 Webster]
{Osmic acid}. (Chem.) (a) Osmic tetroxide. [Obs.] (b) Osmic acid proper, an acid analogous to sulphuric acid, not known in the free state, but forming a well-known and stable series of salts (osmates), which were formerly improperly called osmites.
{Osmic tetroxide} (Chem.), a white volatile crystalline substance, {OsO4}, the most stable and characteristic of the compounds of osmium. It has a burning taste, and gives off a vapor, which is a powerful irritant poison, violently attacking the eyes, and emitting a strong chlorinelike odor. Formerly improperly called {osmic acid}. [1913 Webster]
The Collaborative International Dictionary of English. 2000.