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Definitions for Pulley

[1] a wheel, with a grooved rim for carrying a line, that turns in a frame or block and serves to change the direction of or to transmit force, as when one end of the line is pulled to raise a weight at the other end: one of the simple machines.
[2] a combination of such wheels in a block, or of such wheels or blocks in a tackle, to increase the force applied.
[3] a wheel driven by or driving a belt or the like, used to deliver force to a machine, another belt, etc., at a certain speed and torque.
[4] a wheel with a grooved rim in which a rope, chain, or belt can run in order to change the direction or point of application of a force applied to the rope, etc
[5] a number of such wheels pivoted in parallel in a block, used to raise heavy loads
[6] a wheel with a flat, convex, or grooved rim mounted on a shaft and driven by or driving a belt passing around it

Words related to Pulley

wheel, ring, block, sheave

Words nearby Pulley

pull-up, pullback, pulldown, pulled, pullet, pulley, pulley bone, pulley stile, pulling boat, pulling teeth, pullman

Origin of Pulley

1275–1325; Middle English poley, puly < Middle French polie ≪ Medieval Greek *polídion little pivot, equivalent to pól(os ) pole2 + -idion diminutive suffix

Other words from Pulley

pul·ley·less , adjective

Word origin for Pulley

C14 poley, from Old French polie, from Vulgar Latin polidium (unattested), apparently from Late Greek polidion (unattested) a little pole, from Greek polos axis

Synonyms for Pulley

block, ring, wheel, sheave