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Stereo-chemical :: Stereo-chemic (a.) Alt. of Stereo-chemica.

Fluorine :: Fluorine (n.) A non-metallic, gaseous element, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of which it is the first member. It always occurs combined, is very active chemically, and possesses such an avidity for most elements, and silicon especially, that it can neither be prepared nor kept in glass vessels. If set free it immediately attacks the containing material, so that it was not isolated until 1886. It is a pungent, corrosive, colorles

Homatropine :: Homatropine (n.) An alkaloid, prepared from atropine, and from other sources. It is chemically related to atropine, and is used for the same purpose..

Develop :: Develop (v. t.) To cause to become visible, as an invisible or latent image upon plate, by submitting it to chemical agents; to bring to view..

Stain :: Stain (v. t.) To color, as wood, glass, paper, cloth, or the like, by processess affecting, chemically or otherwise, the material itself; to tinge with a color or colors combining with, or penetrating, the substance; to dye; as, to stain wood with acids, colored washes, paint rubbed in, etc.; to stain glass..

Unsymmetrical :: Unsymmetrical (a.) Being without symmetry of chemical structure or relation; as, an unsymmetrical carbon atom..

Drug :: Drug (n.) Any animal, vegetable, or mineral substance used in the composition of medicines; any stuff used in dyeing or in chemical operations..

Neurokeratin :: Neurokeratin (n.) A substance, resembling keratin, present in nerve tissue, as in the sheath of the axis cylinder of medullated nerve fibers. Like keratin it resists the action of most chemical agents, and by decomposition with sulphuric acid yields leucin and tyrosin..

Coagulate :: Coagulate (v. t.) To cause (a liquid) to change into a curdlike or semisolid state, not by evaporation but by some kind of chemical reaction; to curdle; as, rennet coagulates milk; heat coagulates the white of an egg..

Chemosmosis :: Chemosmosis (n.) Chemical action taking place through an intervening membrane.

Ossein :: Ossein (n.) The organic basis of bone tissue; the residue after removal of the mineral matters from bone by dilute acid; in embryonic tissue, the substance in which the mineral salts are deposited to form bone; -- called also ostein. Chemically it is the same as collagen..

Iatrochemical :: Iatrochemical (a.) Of or pertaining to iatrochemistry, or to the iatrochemists..

Mortify :: Mortify (v. t.) To destroy the active powers or essential qualities of; to change by chemical action.

Bathybius :: Bathybius (n.) A name given by Prof. Huxley to a gelatinous substance found in mud dredged from the Atlantic and preserved in alcohol. He supposed that it was free living protoplasm, covering a large part of the ocean bed. It is now known that the substance is of chemical, not of organic, origin..

Ammonium :: Ammonium (n.) A compound radical, NH4, having the chemical relations of a strongly basic element like the alkali metals..

Composition :: Composition (n.) A mass or body formed by combining two or more substances; as, a chemical composition..

Lignin :: Lignin (n.) A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents.

Condense :: Condense (v. i.) To combine or unite (as two chemical substances) with or without separation of some unimportant side products.

Chromophore :: Chromophore (n.) Any chemical group or residue (as NO2; N2; or O2) which imparts some decided color to the compound of which it is an ingredient.

Analysis :: Analysis (n.) The separation of a compound substance, by chemical processes, into its constituents, with a view to ascertain either (a) what elements it contains, or (b) how much of each element is present. The former is called qualitative, and the latter quantitative analysis..

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