Part 114

Ei*kon"o*gen (?), n. [Gr. e'ikw`n, e'iko`nos, image + root of gi`gnesqai to be born.] (Photog. & Chem.) The sodium salt of a sulphonic acid of a naphthol, C10H5(OH)(NH2)SO3Na used as a developer.

E"ject (?), n. [See Eject, v. t.] (Philos.) An object that is a conscious or living object, and hence not a direct object, but an inferred object or act of a subject, not myself; -- a term invented by W. K. Clifford.

||E*jec"ta (?), n. pl. [L., neut. pl. of ejectus cast out. See Eject.] Matter ejected; material thrown out; as, the ejecta of a volcano; the ejecta, or excreta, of the body.

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E*ject"or, n. That part of the mechanism of a breech-loading firearm which ejects the empty shell.

El"der*ber`ry (?), n. (Bot.) The berrylike drupe of the elder. That of the Old World elder (Sambucus nigra) and that of the American sweet elder (S. Canadensis) are sweetish acid, and are eaten as a berry or made into wine.

E*lec"tri*fy (?), v. t. [imp. & p. p. Electrified (?); p. pr. & vb. n. Electrifying (?).] [Electric + -fy.] To equip for employment of electric power; as, to electrify a railroad.

E*lec"tro*graph (?), n. [Pref. electro + -graph.] 1. An apparatus, controlled by electric devices, used to trace designs for etching.

2. An instrument for the reproduction at a distance of pictures, maps, etc., by means of electricity.

3. An image made by the Röntgen rays; a sciagraph.

4. A cinematograph using the arc light.

E*lec`tro*graph"ic (?), a. Of or pertaining to an electrograph or electrography.

E*lec*trog"ra*phy (?), n. 1. The art or process of making electrographs or using an electrograph.

2. = Galvanography.

E*lec"tro*lyze (?), v. t. [See Electrolysis.] To subject to electrolysis. -- E*lec`tro*ly*za"tion (#), n.

E*lec"tron (?), [NL., fr. Gr. &?;. See Electric.] (Physics & Chem.) One of those particles, having about one thousandth the mass of a hydrogen atom, which are projected from the cathode of a vacuum tube as the cathode rays and from radioactive substances as the beta rays; -- called also corpuscle. The electron carries (or is) a natural unit of negative electricity, equal to 3.4 x 10-10 electrostatic units. It has been detected only when in rapid motion; its mass, which is electromagnetic, is practically constant at the lesser speeds, but increases as the velocity approaches that of light. Electrons are all of one kind, so far as known, and probably are the ultimate constituents of all atoms. An atom from which an electron has been detached has a positive charge and is called a coelectron.

E`lec*tron"ic (?), a. (Physics & Chem.) Of or pertaining to an electron or electrons.

||E*lec`tro*poi"on (?), n., or Electropoion fluid. [NL.; electro- + Gr. poiw^n, p. pr. of poiei^n to make.] (Elec.) An exciting and depolarizing acid solution used in certain cells or batteries, as the Grenet battery. Electropoion is best prepared by mixing one gallon of concentrated sulphuric acid diluted with three gallons of water, with a solution of six pounds of potassium bichromate in two gallons of boiling water. It should be used cold.

{ El"e*me, or El"e*mi, figs` } (l"*m). [Turk. eleme anything which has been sifted and freed from dust or broken parts.] A kind of figs of superior quality.

El"e*va`tor, n. (Aëronautics) A movable plane or group of planes used to control the altitude or fore-and-aft poise or inclination of an airship or flying machine.

||É`lite" (`lt"), n. See Army organization, Switzerland.

E. M. F. (Physics) An abbreviation for electro-motive force.

Em`is*siv"i*ty (?), n. Tendency to emission; comparative facility of emission, or rate at which emission takes place; specif. (Physics), the rate of emission of heat from a bounding surface per degree of temperature difference between the surface and surrounding substances (called by Fourier external conductivity).

Empire State. New York; -- a nickname alluding to its size and wealth.

Empire State of the South. Georgia; -- a nickname.

Empire State of the West. Missouri; -- a nickname.

Em*place" (?), v. t. [imp. & p. p. Emplaced (?); p. pr. & vb. n. Emplacing (?).] [Cf. F. emplacer. See En-; Place, v. & n.] To put into place or position; to fix on an emplacement.

Em*place"ment (?), n. [Cf. F. emplacement.] A putting in, or assigning to, a definite place; localization; as, the emplacement of a structure.