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A chemist; an alchemist. [Obs.]

Pertaining to chemistry; characterized or produced by the forces and operations of chemistry; employed in the processes of chemistry; as, chemical changes; chemical comnbinations. Chemical attraction or affinity. See under Attraction.

According to chemical principles; by chemical process or operation.

Engraved by a voltaic battary.

Any mechanical engraving process depending upon chemical action; specif., a process of zinc etching not employing photography. -- Chem`i*graph"ic (#), a.

A garment for women, consisting of chemise and drawers united in one. [U. S.]

A shift, or undergarment, worn by women.

An under-garment, worn by women, usually covering the neck, shoulders, and breast.

The force exerted between the atoms of elementary substance whereby they unite to form chemical compounds; chemical attaction; affinity; -- sometimes used as a general expression for chemical activity or relationship.

A person versed in chemistry or given to chemical investigation; an analyst; a maker or seller of chemicals or drugs.

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.

One of a number of processes by which an impression from an engraved plate is obtained in relief, to be used for printing on an ordinary printing press.

applied to the decomposition of organic substance into more simple bodies, by the use of chemical agents alone. Thudichum.

Inflammatory swelling of the conjunctival tissue surrounding the cornea. --Che*mot"ic (#), a.

Chemical action taking place through an intervening membrane.

Pertaining to, or produced by, chemosmosis. [R.]

Synthesis of organic compounds by energy derived from chemical changes or reactions. Chemosynthesis of carbohydrates occurs in the nitrite bacteria through the oxidation of ammonia to nitrous acid, and in the nitrate bacteria through the conversion of nitrous into nitric acid. -- Chem`o*syn*thet"ic (#), a.…

ess exhibited by small free-swimming organisms, as bacteria, zoöspores of algæ, etc., to chemical substances held in solution. They may be attracted (positive chemotaxis) or repelled (negative chemotaxis). -- Chem`o*tac"tic (#), a. -- Chem`o*tac"tic*al*ly, adv.

A subdivision in the upper part of the Devonian system in America, so named from the Chemung River, along which the rocks are well developed. It includes the Portage and Chemung groups or epochs. See the Diagram under Geology.

nts, mostly perennial, and of many species including the many varieties of garden chrysanthemums (annual and perennial), and also the feverfew and the oxeye daisy.