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- See also the abbreviation, ARC.
The term Arc is derived from the Latin word "arcus" meaning "bow".
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
- .arc, a file extension for archive files.
- Arc programming language, a Lisp programming language in development by Paul Graham.
- Arc, term used by some clinicians to describe symptoms found in some persons living with HIV.
- 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).
- 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.
- Arc is a common abbreviation for the Prix de l'Arc de Triomphe horse race.