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assumed to be indivisible, but merely the finest grade of subdivision hitherto attained. Chemistry deals with the changes in the composition and constitution of molecules. See Atom, Molecule.

Chemistry in its relations to actinism. Draper.

Alchemy. [Obs.]

The chemistry of living organisms; the chemistry of the processes incidental to, and characteristic of, life.

That branch of science which treats of the relation of electricity to chemical changes.

The study of the chemical composition of, and of actual or possible chemical changes in, the crust of the earth. -- Ge`o*chem"ic*al (#), a. --Ge`o*chem"ist (#), n.

Chemistry applied to, or used in, medicine; -- used especially with reference to the doctrines in the school of physicians in Flanders, in the 17th century, who held that health depends upon the proper chemical relations of the fluids of the body, and who endeavored to explain the conditions of health or disease by che…

properties, actions or relations of substances in quantity; -- distinguished from micro- chemistry.

r portions of matter, magnified by the use of the microscopy; -- distinguished from macro-chemistry.

The branch of chemistry which relates to the effect of light in producing chemical changes, as in photography.

Chemistry in its relation to vegetable bodies; vegetable chemistry. R. Hunt.

Chemistry considered with reference to the space relations of atoms.

That branch of chemical science which includes the investigation of the various relations existing between chemical action and that manifestation of force termed heat, or the determination of the heat evolved by, or employed in, chemical actions.

Animal chemistry; particularly, the description of the chemical compounds entering into the composition of the animal body, in distinction from biochemistry.

The state or quality of being absorbable. Graham (Chemistry).

te article answering to the English the; as, Alkoran, the Koran or the Book; alchemy, the chemistry.

old, to find the panacea, or universal remedy for diseases, etc. It led the way to modern chemistry.

To visit. [Obs.] And he applied each place so fast. Chapman. Applied chemistry. See under Chemistry. -- Applied mathematics. See under Mathematics.

Water; -- a word much used in pharmacy and the old chemistry, in various signification, determined by the word or words annexed. Aqua ammoniæ, the aqueous solution of ammonia; liquid ammonia; often called aqua ammonia. -- Aqua marine, or Aqua marina. Same as Aquamarine. -- Aqua regia. Etym: [L., royal water] (Chem.),…

In chemistry it is used to denote the salts formed from those acids whose names end -ic (excepting binary or halogen acids); as, sulphate from sulphuric acid, nitrate from nitric acid, etc. It is also used in the case of certain basic salts.