Chain (disambiguation)

A chain is a series of connected links which are typically made of metal.

Chain may also refer to:

Accessories and apparel

 * Chain mail, a type of armor made of interlocking chain links
 * Neck chain (or necklace), a type of jewelry which is worn around the neck

Places

 * Chain Bridge (Budapest), a suspension bridge that spans River Danube between Buda and Pest
 * Chain Bridge (Potomac River), a bridge across the Potomac River at Little Falls in Washington, D.C.
 * Chains (geological site), a geological site on the north-west plateau of Exmoor, Somerset, England
 * Union Chain Bridge, a bridge between Northumberland, England and Berwickshire, Scotland

People with the name

 * Ernst Chain (1906–1979), Nobel Prize-winning chemist famed for his isolation of penicillin
 * John T. Chain Jr. (1934–2021), retired U.S. Air Force general

Films and television

 * Chains (film), a 1949 Italian melodrama film
 * Chains (Blackadder), a 1986 episode of the British sitcom Blackadder II
 * Chains of Love (TV series), a 2001 American dating game show adapted from a Dutch television series
 * Chain (film), a 2004 film written and directed by Jem Cohen
 * Chains, a 2009 short film starring TNA wrestler Kurt Angle

Literature

 * Chains (play), a 1909 play by Elizabeth Baker
 * Chain (play), a 1992 play by Pearl Cleage
 * Chains (novel), a 2008 historical-fiction novel by Laurie Halse Anderson

Music

 * Chain (band), an Australian blues rock band active from the 1960s to the present

Albums

 * Chain (Paul Haig album), 1989
 * Chain (The Family Stand album), 1990
 * Chain (Pylon album), 1990
 * Chains (album), by Yōko Oginome, 1997
 * Chain (Bonnie Pink EP), 2008
 * Chain (KAT-TUN album), 2012
 * Chain (NCT 127 EP), 2018

Songs

 * "Chains" (Cookies song), 1962, covered by The Beatles
 * "The Chain", a 1977 song by Fleetwood Mac
 * "Chains", a song by Chicago from the 1982 album Chicago 16
 * "Chains" (Patty Loveless song), 1990
 * "Chains" (Tina Arena song), 1994
 * "Chains" (DLT song), 1996
 * "Chain", a song by the Fire Theft from their 2003 self-titled album
 * "Chains" (Nick Jonas song), 2014
 * "Chains" (Usher song), 2015
 * "Chain", a song by His Boy Elroy

Business and economics

 * Chain (real estate), a group of buyers/sellers that are linked together
 * Chain of command, the line of authority and responsibility along which orders are passed
 * Chain store, a retail shop outlets which share a brand and central management
 * Chained dollars, used to express real dollar amounts adjusted over time for inflation
 * Cinema chain, or movie chain
 * Cold chain, a temperature-controlled supply chain
 * Fast food chain
 * Hotel chain
 * Restaurant chain
 * Supply chain, a coordinated system of organizations, people, activities, information and resources involved in moving a product or service from supplier to customer
 * Value chain, a management concept first described by Michael Porter

Mathematics

 * Chain (ordered set), a totally ordered set, usually a subset of a given partially ordered set
 * Chain (algebraic topology), a formal linear combination of k-simplices
 * Chain complex, a generalization of the algebraic topology construct to homological algebra
 * Chain rule, a tool for differentiation in calculus
 * Chain sequence, numbers in the mathematical study of continued fractions
 * Conway chained arrow notation, a way of expressing exponents using arrows
 * Jordan chain, a sequence of linearly independent generalized eigenvectors of descending rank
 * Markov chain, a discrete-time stochastic process with the Markov property
 * Pseudo-arc, which has at its heart the concept of a chain

Mechanics, engineering, and implements

 * Bar-link chain (or block chain), a mechanical drive chain
 * Bicycle chain, a roller chain that transfers power from the pedals to the drive-wheel of a bicycle
 * Buffers and chain coupler, a railway device
 * Catenary (or chain), the shape of a hanging flexible cable when supported at its ends and acted upon by a uniform gravitational force
 * Chain Home and Chain Home Low, early British RDF (radar) systems of the WWII era
 * Chain tool, a small mechanical device used to "break" a bicycle chain in such a way that it could be mended with the same tool
 * Conveyor chain, a chain that conveys items in chain conveyor systems
 * Drive chain, a way of transmitting mechanical power from one place to another
 * Print chain on a chain printer
 * Roller chain, most commonly used for transmission of mechanical power
 * Self-lubricating chain, to eliminate the need for further lubrication
 * Snow chains or tire chains, devices fitted to the tires of vehicles to provide maximum traction
 * Timing chain, part of an internal combustion engine

Chemistry

 * Catenation, the bonding of atoms of the same element in a series, or chain
 * Polymer chain, structure of a polymer
 * Chain reaction, a sequence of reactions where a reactive product or by-product causes additional reactions
 * Ideal chain, a mathematical model of polymer folding
 * Worm-like chain, a model in polymer physics used to describe the behavior of semi-flexible polymers

Other uses in science

 * Electron transport chain, a sequence of chemical reactions yielding the transport of an electron through a membrane
 * Food chain, a hierarchical or recursive list of predators and prey

Geological features

 * Archipelago, a chain of islands
 * Crater chain, a line of craters on the surface of an astronomical body
 * Mountain range, a chain of hills or mountains

Other sequences

 * Chain bridge, type of suspension bridge
 * Chain crew, crew that manages signal poles in gridiron football
 * Chain gang, group of prisoners chained together as a form of punishment
 * Chain letter, a message that attempts to induce the recipient to make a number of copies of the message and then pass them on to one or more new recipients
 * Chain of events, a number of actions and their effects that are linked together
 * Chain smoking, practice of smoking several cigarettes/cigars in succession
 * Chain stitch, in sewing and embroidery, a series of looped stitches that form a chain
 * Chaining, a technique from applied behavioral analysis for teaching complicated tasks by breaking them into simpler steps
 * Hudson River Chains, one of several chains used in blockades of the Hudson River
 * Human chain (politics), a form of protest
 * Signifying chain, in semiotics, an interlocking system of signifiers

Measurement

 * Chain (unit), a unit of length
 * Gunter's chain, a unit of measurement
 * New York City Subway chaining, method to specify locations along the New York City Subway lines

Other uses

 * Chain (caste), a cultivating and fishing caste found in India
 * Chains (nautical), small platforms on the sides of ships
 * Fetter (Buddhism) (mental chain), a deeply rooted mental attachment preventing one from achieving liberation from suffering