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 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.

(O"sier*y) n. An osier bed.

(O*si"ris) n. [L., fr. Gr. of Egyptian origin.] (Myth.) One of the principal divinities of Egypt, the brother and husband of Isis. He was figured as a mummy wearing the royal cap of Upper Egypt, and was symbolized by the sacred bull, called Apis. Cf. Serapis.O*sir"i*an a.

(Os"man*li) n.; pl. Osmanlis [So called from Osman. See Ottoman.] A Turkish official; one of the dominant tribe of Turks; loosely, any Turk.

(Os"mate) n. (Chem.) A salt of osmic acid. [Formerly written also osmiate.]

(||Os`ma*te"ri*um) n.; pl. Osmateria [NL., fr. Gr. smell.] (Zoöl.) One of a pair of scent organs which the larvæ of certain butterflies emit from the first body segment, either above or below.

(Os"ma*zome) n. [Gr. smell, odor + broth: cf. F. osmazôme.] (Old Chem.) A substance formerly supposed to give to soup and broth their characteristic odor, and probably consisting of one or several of the class of nitrogenous substances which are called extractives.

(Os`mi*am"ate) n. (Chem.) A salt of osmiamic acid.

(Os`mi*am"ic) a. [Osmium + amido.] (Chem.) Of, pertaining to, or designating, a nitrogenous acid of osmium, H2N2Os2O5, forming a well-known series of yellow salts.

(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.

  By PanEris using Melati.

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