follow Dictionary.com

Get the details behind our redesign

ARC

1.
American Red Cross.
Also, A.R.C.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for a r c

arc

/ɑːk/
noun
1.
something curved in shape
2.
part of an unbroken curved line
3.
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
4.
(astronomy) a circular section of the apparent path of a celestial body
5.
(maths) a section of a curve, graph, or geometric figure
verb arcs, arcing, arced, arcs, arcking, arcked
6.
(intransitive) to form an arc
prefix
7.
(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

ARC

abbreviation
1.
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
Cite This Source
Word Origin and History for a r c
arc
late 14c., from O.Fr. arc, from L. arcus "a bow, arch," from PIE base *arqu- "bowed, curved" (cf. Goth. arhvazna "arrow," O.E. earh, O.N. ör). Electrical sense is from 1821.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
a r c in Medicine

arc (ärk)
n.
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.
Cite This Source
a r c in Science
arc
  (ärk)   
  1. A segment of a circle.

  2. See electric arc.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Related Abbreviations for a r c

arc

archive

ARC

  1. Addiction Research Center
  2. advance readers copy
  3. AIDS-related complex
  4. amateur radio club
  5. American Red Cross
  6. [National Aeronautics and Space Administration] Ames Research Center
  7. Appalachian Regional Commission
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of The Day

Difficulty index for ARC

All English speakers likely know this word

Word Value for a

0
0
Scrabble Words With Friends