Defn: A salt of osmiamic acid.

OSMIAMIC
Os`mi*am"ic, a. Etym: [Osmium + amido.] (Chem.)

Defn: Of, pertaining to, or designating, a nitrogenous acid of osmium, H2N2Os2O5, forming a well-known series of yellow salts.

OSMIC
Os"mic, a. (Chem.)

Defn: 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.

OSMIDROSIS
Os`mi*dro"sis, n. Etym: [NL., from Gr. (Med.)

Defn: The secretion of fetid sweat.

OSMIOUS
Os"mi*ous, a. (Chem.)

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

OSMITE
Os"mite, n. (Chem.)