- 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
- American Red Cross.
- Pathology. AIDS-related complex.
- Jeanne [zhahn] /ʒɑn/. Joan of Arc.
Examples from the Web for arc
So the plan is for Ken to draw an arc with Dale doing covers, and then Dale does an arc with Ken doing covers.Gail Simone’s Bisexual Catman and the ‘Secret Six’
December 6, 2014
A Molotov cocktail tumbled in an arc overhead and erupted briefly in a blaze.Mexican Protesters Look to Start a New Revolution
November 21, 2014
At this point in the arc, he doubts what Hershel is telling him.The Walking Dead’s Luke Skywalker: Rick Grimes Is the Perfect Modern-Day Mythical Hero
October 28, 2014
And the scene had such a huge beginning, middle, and end, and such an arc.Kerry Washington’s Favorite ‘Scandal’ Season 3 Moments
August 8, 2014
How much did you know about your arc and all its twists before shooting?Joan Allen on ‘The Killing’ Finale and That Mother of a Twist
August 7, 2014
But of the arc which He disclosed no one group of His followers has as yet perceived the whole.The Conquest of Fear
Simba indicated the sun, and swept his hand across the arc of the heavens.The Leopard Woman
Stewart Edward White
Had that animal Coupeau gone to the Arc de Triomphe to get his dram?L'Assommoir
It is, of course, not necessary to use mercury vapor for the arc.The Automobile Storage Battery
O. A. Witte
An arc light had sprung into being, and—he stopped with a gasp.Mixed Faces
- 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 arc
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.