noun sprock·et \ˈsprä-kət\

: a wheel that has a row of teeth around its edge which fit into the holes of something (such as a bicycle chain or a piece of film) and cause it to turn when the wheel turns; also : any one of the teeth on such a wheel

Full Definition of SPROCKET

:  a toothed wheel whose teeth engage the links of a chain
:  a cylinder with teeth around the circumference at either end that project through perforations in something (as motion-picture film) to move it through a mechanism (as a projector)

Origin of SPROCKET

origin unknown
First Known Use: 1886


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