Arc

{{About|"Arc" as a word|initialisms|ARC (disambiguation)}} {{wiktionary|Arc}} '''Arc''' may refer to: {{TOC right}}

==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=== * <code>arc</code>, the command-line interface for ArcInfo * ARC (file format), a file name extension for archive files * ARC (processor), 32-bit RISC architecture * Adaptive Replacement Cache, a page replacement algorithm for high-performance filesystems * Automatic Reference Counting, the Clang compiler's implementation of reference counting * 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 and technology=== * 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===  * ''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

===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 Institute, an American biomedical research organization * 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 * Arc, short for "Arcade"; a Street suffix as used in the US

==Sports== * American Rivers Conference (abbreviation officially rendered as "A-R-C"), an NCAA Division III athletic conference * Arc (greyhounds), a major greyhound race in the Greyhound Board of Great Britain calendar * Prix de l'Arc de Triomphe, a horse race in Paris

==Other uses== * Arc (Bahá'í), a number of administrative buildings for the Bahá'í Faith, located on Mount Carmel in Israel

==See also== {{Canned search|arc|arc's|arc-s|arces|arcs}} * Joan of Arc (c. 1412–1431), national heroine of France and Catholic saint * {{Self-reference tool}} * ARC (disambiguation) * Arcs (disambiguation) * Arc Angel (disambiguation) * Arc reactor (disambiguation) * Arch (disambiguation) * Arch of Triumph (disambiguation) * Ark (disambiguation) * ARQ (disambiguation) {{Disambiguation}}

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