Microcosmic salt(Chem.), a white crystalline substance obtained by mixing solutions of sodium phosphate and ammonium phosphate, and also called hydric-sodic- ammonic-phosphate. It is a powerful flux, and is used as a substitute for borax as a blowpipe reagent in testing for the metallic oxides. Originally obtained by the alchemists from human urine, and called sal microcosmicum.

(Mi`cro*cos*mog"ra*phy) n. [Microcosm + -graphy.] Description of man as a microcosm.

(Mi`cro*cou`lomb") n. [Micro- + coulomb.] (Elec.) A measure of electrical quantity; the millionth part of one coulomb.

(Mi`cro*cous"tic) a. [Micro- + acoustic: cf. F. microcoustique, micracoustique.] Pertaining, or suited, to the audition of small sounds; fitted to assist hearing.

(Mi`cro*cous"tic), n. An instrument for making faint sounds audible, as to a partially deaf person.

(Mi`cro*crith") n. [Micro- + crith.] (Chem.) The weight of the half hydrogen molecule, or of the hydrogen atom, taken as the standard in comparing the atomic weights of the elements; thus, an atom of oxygen weighs sixteen microcriths. See Crith. J. P. Cooke.

(Mi`cro*crys"tal*line) a. [Micro- + crystalline.] (Crystallog.) Crystalline on a fine, or microscopic, scale; consisting of fine crystals; as, the ground mass of certain porphyrics is microcrystalline.

(Mi"cro*cyte) n. [Micro- + Gr. a hollow vessel.] (Physiol.) One of the elementary granules found in blood. They are much smaller than an ordinary corpuscle, and are particularly noticeable in disease, as in anæmia.

(Mic"ro*dont) a. [Micr- + Gr. 'odoy`s, 'odo`ntos, a tooth.] (Anat.) Having small teeth.

(Mi`cro*far"ad) n. [Micro- + farad.] (Elec.) The millionth part of a farad.

(Mi"cro*form) n. [Micro- + form, n.] (Biol.) A microscopic form of life; an animal or vegetable organism of microscopic size.

(Mi`cro-ge`o*log"ic*al) a. Of or pertaining to micro-geology.

(Mi`cro-ge*ol"o*gy) n. [Micro- + geology.] The part of geology relating to structure and organisms which require to be studied with a microscope.

(Mi"cro*graph) n. [See Micrography.] An instrument for executing minute writing or engraving.

(Mi`cro*graph"ic) a. Of or pertaining to micrography.

(Mi*crog"ra*phy) n. [Micro- + -graphy: cf. F. micrographie.] The description of microscopic objects.

(Mi*crohm") n. [Micr- + ohm.] (Elec.) The millionth part of an ohm.

(Mi"cro*cosm) n. [F. microcosme, L. microcosmus, fr. Gr. mikro`s small + ko`smos the world.] A little world; a miniature universe. Hence a man, as a supposed epitome of the exterior universe or great world. Opposed to macrocosm. Shak.

(Mi`cro*cos"mic Mi`cro*cos"mic*al) a. [Cf. F. microcosmique.] Of or pertaining to the microcosm.

  By PanEris using Melati.

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