Arc may refer to:
Mathematics
- Arc (geometry), a segment of a differentiable curve
- Circular arc, a segment of a circle
- Arc (topology), a segment of a path
- Arc length, the distance between two points along a section of a curve
- Arc (projective geometry), a particular type of set of points of a projective plane
- arc (function prefix) (arcus), a prefix for inverse trigonometric functions
- Directed arc, a directed edge in graph theory
- Minute and second of arc, a unit of angular measurement equal to 1/60 of one degree.
- Wild arc, a concept from geometric topology
Science and technology
Geology
- Arc, in geology a mountain chain configured as an arc due to a common orogeny along a plate margin or the effect of back-arc extension
- Hellenic arc, the arc of islands positioned over the Hellenic Trench in the Aegean Sea off Greece
- Back-arc basin, a subsided region caused by back-arc extension
- Back-arc region, the region created by back-arc extension, containing all the basins, faults, and volcanoes generated by the extension
- Island arc, an arc-shaped archipelago, usually so configured for geologic causes, such as sea-floor spreading, common orogeny on the margin of the same plate, or back-arc extension
- Northeastern Japan Arc, an island arc
- Banda Arc, a set of island arcs in Indonesia
- Continental arc, in geology a continental mountain chain or parallel alignment of chains (as opposed to island arcs), configured in an arc
- Eastern Arc Mountains, a continental arc of Africa
- Volcanic arc, a chain of volcanoes positioned in an arc shape as seen from above
- Aleutian Arc, a large volcanic arc in the U.S. state of Alaska
- Nastapoka arc, a circular coastline in Hudson Bay
Technology
arc, the command-line interface for ArcInfo- ARC (file format), a file name extension for archive files
- ARC (processor), 32-bit RISC architecture
- ARC (adaptive replacement cache), a page replacement algorithm for high-performance filesystems
- Arc (browser), a freeware browser developed by The Browser Company
- Arc (programming language), a Lisp dialect designed by Paul Graham
- Sony Ericsson Xperia Arc, a cellphone
- Audio Return Channel, an audio technology working over HDMI
- Authenticated Received Chain, an email authentication system
- Arc lamp, a lamp that produces light by an electric arc
- Xenon arc lamp, a highly specialized type of gas discharge lamp
- Deuterium arc lamp, a low-pressure gas-discharge light source
- Hydrargyrum medium-arc iodide lamp, the trademark name of Osram's brand of metal-halide gas discharge medium arc-length lamp
- Electric arc furnace, a furnace that heats charged material by means of an electric arc
- Arc welding, a welding process that is used to join metal to metal
- Arc-fault circuit interrupter, a specialized circuit breaker
- Arc converter, a spark transmitter
- Intel Arc, brand of graphics processing units designed by Intel
- Arc, one side (half) of an arch
Other science
- Electric arc, an ongoing plasma discharge (an electric current through a gas), producing light and heat
- Arc flash, the light and heat produced as part of an arc fault
- Arc (protein), a name of product of an immediate early gene, also called Arg3.1
- Reflex arc, a neural pathway that controls a reflex
- Circumhorizontal arc, an optical phenomenon
- Circumzenithal arc, an optical phenomenon
Arts and entertainment
Music
- The Arcs, an American garage rock band formed by Dan Auerbach in 2015
- A.R.C. (album), by pianist Chick Corea with bassist David Holland and drummer Barry Altschul recorded in 1971
- Arc (Neil Young & Crazy Horse album), 1991
- Arc (Everything Everything album), 2013
- Arc (EP), a 2016 EP by Agoraphobic Nosebleed
- "Arc", a song by Pearl Jam from Riot Act
Video games
- Arc System Works, a video game developer
- Luminous Arc, a video game series
- The title character of Arc the Lad, a series of role-playing video games for the PlayStation and PlayStation 2
- Armored Response Coalition, a fictional military/resistance organization seen in the 2020 video game Doom Eternal
Other arts and entertainment
- Tilted Arc, a controversial public art installation by Richard Serra
- Arc Poetry Magazine, a Canadian literary journal
- Character arc, the status of a character as it unfolds throughout the story
- Story arc, an extended or continuing storyline
- Arcs, one of the twelve basic principles of animation
Codes
- Arcata Transit Center, Amtrak code for the station in Arcata, California
- IATA airport code of Arctic Village Airport, a public use airport in Alaska
- ISO 639-2 and -5 language code of the Aramaic language, a Semitic language
- ISO 639-3 language code of the Official Aramaic language, spoken between 700 BCE and 300 BCE
Companies and organizations
- Arc Infrastructure, an Australian railway company
- Arc International, a French manufacturer and distributor of household goods
- Arc Publications, a UK independent publisher of poetry
- Arc @ UNSW, the principal student organisation at the University of New South Wales
- Arc of the United States, a charitable organization serving people with intellectual and developmental disabilities
- Arc Holdings, a French manufacturer of household goods
Places
- Arc (Provence), a river of southern France, flowing into the Étang de Berre
- Arc (Savoie), a river of eastern France, tributary of the Isère river
- Les Arcs, a ski resort in the French Alps
- Arc, short for "Arcade"; a Street suffix as used in the US
Other uses
- Arc (Bahá'í), a number of administrative buildings for the Bahá'í Faith, located on Mount Carmel in Israel
- Arc (greyhounds), a major greyhound race in the Greyhound Board of Great Britain calendar
See also
- Joan of Arc (c. 1412–1431), national heroine of France and Catholic saint
- ARC (disambiguation)
- Arc Angel (disambiguation)
- Arc reactor (disambiguation)
- Arch (disambiguation)
- Arch of Triumph (disambiguation)
- Ark (disambiguation)
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