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al science which treats of the effect of an electric current upon the temperature of a conductor, or a part of a circuit composed of two different metals.

yed into or from a solution or other conducting medium; esp., the ends of the wires or conductors, leading from source of electricity, and terminating in the medium traversed by the current.

g of, the elements, rudiments, or first principles of anything; initial; rudimental; introductory; as, an elementary treatise.

from arrest, or from slavery; gas escapes from the pipes; electricity escapes from its conductors. To escape out of these meshes. Thackeray.

Pertaining to the exordium of a discourse: introductory. The exordial paragraph of the second epistle. I. Taylor.

A beginning; an introduction; especially, the introductory part of a discourse or written composition, which prepares the audience for the main subject; the opening part of an oration. "The exordium of repentance." Jer. Taylor. "Long prefaces and exordiums. " Addison.

The scar to which the adductor muscle is attached in oysters and other bivalve shells; also, the adductor muscle itself, esp. when used as food, as in the scallop.

the door of a street car for purchasing tickets of the driver or passing fares to the conductor. Knight.

A form of conductor, designed by Ferranti, for currents of high potential, and consisting of concentric tubes of copper separated by an insulating material composed of paper saturated with black mineral wax.

One who has charge of a mail coach or a railway train; a conductor. [Eng.]

y or course, as in a strange land; one who exhibits points of interest to strangers; a conductor; also, that which guides; a guidebook.

A division of bivalve shells, including the marine mussels, in which the two adductor muscles are very unequal. See Dreissena, and Illust. under Byssus.

The projector, manager, or conductor, of an opera or concert company.

A current due to variation in the magnetic field surrounding its conductor.

An introduction or introductory scene, as to a play; a preface; a prologue. [Obs.] This is but an induction: I will dMassinger.

Serving to initiate; inceptive; initiatory; introductory; preliminary.

Suitable for an introduction or beginning; introductory; prefatory; as, an initiatory step. Bp. Hall.

t the transfer o Insulating stool (Elec.), a stool with legs of glass or some other nonconductor of electricity, used for insulating a person or any object placed upon it.

Separated from other bodies by means of nonconductors of heat or electricity.

The act of separating a body from others by nonconductors, so as to prevent the transfer of electricity or of heat; also, the state of a body so separated.