OSMICALLY
OSMIC
Os"mic, a. (Chem.)
Definition: 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. 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.
Source: Webster’s Unabridged Dictionary 1913 Edition