arc

from WordNet (r) 3.0 (2006)

arc
    n 1: electrical conduction through a gas in an applied electric
         field [syn: {discharge}, {spark}, {arc}, {electric arc},
         {electric discharge}]
    2: a continuous portion of a circle
    3: something curved in shape [syn: {bow}, {arc}]
    v 1: form an arch or curve; "her back arches"; "her hips curve
         nicely" [syn: {arch}, {curve}, {arc}]

from The Collaborative International Dictionary of English v.0.48

Arc \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.
   [Webster 1913 Suppl.]

from The Collaborative International Dictionary of English v.0.48

Arc \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.
      [1913 Webster]

   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.
      [1913 Webster]

   3. An arch. [Obs.]
      [1913 Webster]

            Statues and trophies, and triumphal arcs. --Milton.
      [1913 Webster]

   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.
      [1913 Webster]

   {Electric arc}, {Voltaic arc}. See under {Voltaic}.
      [1913 Webster]

from The Free On-line Dictionary of Computing (8 July 2008)

arc

   1. <file format, tool> An old {archive} format for {IBM PC}.
   The format is now so obscure that it is only likely to be
   supported by jack-of-all-trades decompression programs such as
   {WINZIP}.

   2. <mathematics, data> An {edge} in a {tree}.  "{branch}" is a
   generally more common synonym.

   (1998-12-29)

from The Free On-line Dictionary of Computing (8 July 2008)

Advanced RISC Computing Specification
ARC
ARCS

   <standard, hardware> (ARC, previously ARCS) The baseline
   hardware requirements for an {ACE}-compatible system.

   (1995-01-16)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

ARC
       Advanced RISC Computing [architecture] (ACE, RISC)

from Moby Thesaurus II by Grady Ward, 1.0

59 Moby Thesaurus words for "arc":
      AC arc, Poulsen arc, aperiodic discharge, arc column,
      arc discharge, arc light, arch, bend, bow, brush discharge,
      catacaustic, catenary, caustic, circle, color filter, conchoid,
      crook, curl, curvation, curvature, curve, diacaustic, dimmer,
      discharge, disruptive discharge, electric discharge,
      electric shock, electric spark, electrodeless discharge, ellipse,
      festoon, floats, flood, floodlight, footlights, foots,
      galvanic shock, gelatin, glow discharge, hook, hyperbola,
      klieg light, light plot, lights, limelight, lituus, marquee,
      medium, oscillatory discharge, parabola, round, shock,
      silent discharge, sinus, spark, spark gap, spot, spotlight,
      tracery

from Who Was Who: 5000 B. C. to Date

ARC

Joan of, celebrated French suffragette.  Spent girlhood
milking cows and embroidering.  When the English ministry began
operations in France J. dropped her embroidery in the milk
bucket and began suffragetting.  She did not break windows or
blow up anything. Gathered a host of males about her and
captured towns.  English exited. J. went back to the cow, but
again had to take to the armor. She was finally jailed, and
burnt up by the Radical ministry. She burned an old maid.
Recreation:  Barn dances, churning. Clubs:  Orleans
Suffragette.