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[ahrk] /ɑrk/
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.
verb (used without object), arced
[ahrkt] /ɑrkt/ (Show IPA)
or arcked, arcing
[ahr-king] /ˈɑr kɪŋ/ (Show IPA)
or arcking.
to form an electric arc.
to move in a curve suggestive of an arc.
Origin of arc
1350-1400; Middle English ark < Latin arcus bow, arch, curve
Can be confused
arc, ark. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for arced
Historical Examples
  • Dennis roared again, pushed away and arced the knife at his throat.

    Ten From Infinity Paul W. Fairman
  • He didn't even see the fist that arced upward and smashed into his jaw.

    By Proxy Gordon Randall Garrett
  • John Andrew yelled at him as he arced forward, but it was too late.

  • The Nipe arced backwards in a half-somersault and landed flat on his back.

    Anything You Can Do Gordon Randall Garrett
  • As it rose, it grew perceptibly larger, to dwindle again as it arced over the western horizon.

  • He arced a short distance along the curve of the ship and then forced himself down into contact with the hull.

    The Memory of Mars Raymond F. Jones
  • It arced over the bare strip between the two armies and fell in the Tartar mass without result that he could see.

  • The scout ship responded like a nervous horse and fluttered away as the rocket burned and arced beneath the underbelly.

    The Sex Life of the Gods Michael Knerr
  • Above the sun it arced its way into the heavens in the direction in which they knew Mars lay.

    Giants on the Earth Sterner St. Paul Meek
  • The Nipe arced backward in a half somersault and landed flat on his back.

    Anything You Can Do ... Gordon Randall Garrett
British Dictionary definitions for arced


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
verb arcs, arcing, arced, arcs, arcking, arcked
(intransitive) 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
Word Origin
C14: from Old French, from Latin arcus bow, arch


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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for arced



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.

Online Etymology Dictionary, © 2010 Douglas Harper
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arced in Medicine

arc (ärk)
A curved line or segment of a circle.

ARC abbr.
AIDS-related complex

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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arced in Science
  1. A segment of a circle.

  2. See electric arc.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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