Arc

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

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

 * , 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 (programming language), a Lisp dialect designed by Paul Graham
 * Arc (web browser), a freeware web browser developed by The Browser Company
 * 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

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
 * Ultraman Arc, a 2024 Japanese television series produced by Tsubuyara Productions and TV Tokyo

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 639-3 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
 * Les Arcs, Var, a town in southern France
 * 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