- Geometry. any unbroken part of the circumference of a circle or other curved line.
- Also called electric arc. Electricity. a luminous bridge formed in a gap between two electrodes.Compare spark1(def 2).
- Astronomy. the part of a circle representing the apparent course of a heavenly body.
- anything bow-shaped.
- to form an electric arc.
- to move in a curve suggestive of an arc.
Origin of arc
Examples from the Web for arcing
That afternoon, on a hunch, Ray Molina, a longtime friend who lived in New Mexico, followed an arcing route south from the lodge.The Final Run of Ultra-Marathoner Micah True
May 19, 2012
I looked down at it, and this rope of blood just went [makes a shooting sound and an arcing motion through the air].The Knife Master
Melissa Vaughn, Brendan Vaughn
October 11, 2010
He later identified the occurrence in psychic literature as supernatural “arcing.”Ghostbusters Is Real!
October 26, 2009
But the bolt caromed harmlessly off the side of the arcing Star Devil!Hawk Carse
Its resistance fell, the arcing decreased; the beam became orange and finally green.
The sun was far below the horizon when it was finished, and the glowing, arcing forces that had made and formed it were stopped.
It is better to have switches of some excess capacity, as the heavy metal stands the arcing much better.Motion Picture Operation, Stage Electrics and Illusions
Henry C. Horstmann
Now the blue fireball was arcing down over the hillside, trailing its orange-red comet tail.Tom Swift and The Visitor from Planet X
- something curved in shape
- part of an unbroken curved line
- a luminous discharge that occurs when an electric current flows between two electrodes or any other two surfaces separated by a small gap and a high potential difference
- astronomy a circular section of the apparent path of a celestial body
- maths a section of a curve, graph, or geometric figure
- (intr) to form an arc
- maths specifying an inverse trigonometric function: usually written arcsin, arctan, arcsec, etc, or sometimes sin –1, tan –1, sec –1, etc
- AIDS-related complex: an early condition in which a person infected with the AIDS virus may suffer from such mild symptoms as loss of weight, fever, etc
Word Origin and History for arcing
late 14c., originally in reference to the sun's apparent motion in the sky, from Old French arc "bow, arch, vault" (12c.), from Latin arcus "a bow, arch," from PIE root *arku- "bowed, curved" (cf. Gothic arhvazna "arrow," Old English earh, Old Norse ör; also, via notion of "supple, flexible," Greek arkeuthos, Latvian ercis "juniper," Russian rakita, Czech rokyta, Serbo-Croatian rakita "brittle willow"). Electrical sense is from 1821.
1893, in the electrical sense, from arc (n.). Meaning "to move in an arc" attested by 1954. Related: Arced; arcing.
- A curved line or segment of a circle.
- AIDS-related complex
- A segment of a circle.
- See electric arc.