Arc

:See also the abbreviation, ARC.

Meanings

Mathematics and geometry

• An arc is a continuous portion of a circle; part of a circle's circumference (also called a circle segment).
• Minute of arc or second of arc, measurements of angle.
• Directed edge (graph theory), a one-way link between two nodes in a graph.

Science and computing

;Computing

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• .arc, a file extension for archive files.
• Arc programming language, a Lisp programming language in development by Paul Graham.

;Medicine

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• Arc, term used by some clinicians to describe symptoms found in some persons living with HIV.

;Engineering

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• Arc lamp, a device that produces light by the sparking of a high current.
• An electric arc (sometimes called a voltaic arc); an electrical breakdown of a gas which produces an ongoing plasma discharge.
• Arch, an bowed or curved structure capable of spanning a space while supporting significant weight (e.g. a doorway in a stone wall).

Entertainment

• Story arc, an extended or continuing storyline.
• Arc, a live album by Neil Young.

Geography

• Arc (Savoie), a river of eastern France, tributary of the Isère River.
• Arc (Provence), a river of southern France, flowing into the Étang de Berre.

Other

• Arc is a common abbreviation for the Prix de l'Arc de Triomphe horse race.