Definitions for: Arc


[n] electrical conduction through a gas in an applied electric field
[n] a continuous portion of a circle
[n] something curved in shape
[v] form an arch



Webster (1913) Definition: Arc, n. [F. arc, L. arcus bow, arc. See Arch, n.]
1. (Geom.) A portion of a curved line; as, the arc of a
circle or of an ellipse.

2. A curvature in the shape of a circular arc or an arch; as,
the colored arc (the rainbow); the arc of Hadley's
quadrant.

3. An arch. [Obs.]

Statues and trophies, and triumphal arcs. --Milton.

4. The apparent arc described, above or below the horizon, by
the sun or other celestial body. The diurnal arc is
described during the daytime, the nocturnal arc during the
night.

Electric arc, Voltaic arc. See under Voltaic.


Arc ([aum]rk), v. i. [imp. & p. p. Arcked ([aum]rkt); p.
pr. & vb. n. Arcking.] (Elec.)
To form a voltaic arc, as an electrical current in a broken
or disconnected circuit.

Synonyms: arch, bow, curve, discharge, electric arc, electric discharge, spark

See Also: bend, brush discharge, camber, circle, corona, corona discharge, corposant, curve, curved shape, electric glow, electrical conduction, flashover, flex, limb, rainbow, Saint Elmo's fire, Saint Elmo's light, Saint Ulmo's fire, Saint Ulmo's light, sector, St. Elmo's fire

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