Editing Arc (section)

==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|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