Look up crank in Wiktionary, the free dictionary.

Crank may refer to: Wikipedia does not have an article with this exact name. ... Wiktionary is a Wikimedia Foundation project intended to be a free wiki dictionary (hence: Wiktionary) (including thesaurus and lexicon) in every language. ...

As a technical term:

• Crankshaft, the part of a piston engine which translates reciprocating linear piston motion into rotation
• Crankset, the component of a bicycle drivetrain that converts the reciprocating motion of the rider's legs into rotational motion used to drive the chain, which in turn drives the rear wheel
• Crank (mechanism), in mechanical engineering, a bent portion of an axle, or shaft, or an arm keyed at right angles to the end of a shaft, by which motion is imparted to or received from it
• in mathematics, used to explain congruence patterns in integer partitions, as coined by Freeman Dyson

As a colloquial term: Crankshaft, pistons, and flywheel Continental engine marine crankshafts, 1942 For the comic strip about an old, curmudgeonly bus driver, see Crankshaft (comic strip). ... A Shimano Deore crankset, drive-side showing crankarm, spider, three chainrings and chainring guard The crankset is the component of a bicycle drivetrain that converts the reciprocating motion of the riders legs into rotational motion used to drive the chain, which in turn drives the rear wheel. ... A crank is a bent portion of an axle, or shaft, or an arm keyed at right angles to the end of a shaft, by which motion is imparted to or received from it; also used to change circular into reciprocating motion, or reciprocating into circular motion. ... In mathematics, a partition of a positive integer n is a way of writing n as a sum of positive integers. ... // Freeman Dyson in San Francisco in 2005 (Photo: Jacob Appelbaum) Freeman John Dyson (born December 15, 1923) is an English-born American physicist and mathematician, famous for his work in quantum mechanics, nuclear weapons design and policy, and for his serious theorizing in futurism and science fiction concepts, including the...

• Crank (person), a person who holds unorthodox opinions, but is alleged to have false or ludicrous beliefs
• Methamphetamine or amphetamine, recreational drugs with the nickname "crank"

In entertainment and media: This article or section contains information that has not been verified and thus might not be reliable. ... Methamphetamine (pharmaceutically referred to as methylamphetamine or desoxyephedrine) is a psychostimulant drug used primarily for recreational purposes, but is sometimes prescribed for ADHD and narcolepsy under the brand name Desoxyn. ... Amphetamine (alpha-methyl-phenethylamine), also known as speed, is a synthetic stimulant used to suppress the appetite, control weight, and treat disorders including narcolepsy and Attention-deficit hyperactivity disorder. ...

• Crank (film), a 2006 film starring Jason Statham
• Crank! (magazine), a science fiction magazine edited by Bryan Cholfin
• Crank! (record company), a record label that released albums by emo bands Mineral, The Gloria Record, and Bright Eyes
• Crank! (book), a book written by Ellen Hopkins

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