See Also: pulley(dictionary)
pulley(encyclopedia)
pulley(dictionary)
annular pulley(medicine)
cruciform pulley(medicine)
muscular pulley(medicine)
peroneal pulley(medicine)
pulley of humerus(medicine)
pulley of talus(medicine)

pulley (iou)



pulley noun & verb. ME.
[Old French polie (mod. poulie) from Proto-Romance, prob. ult. from medieval Greek dim. of polos pivot, axis, windlass, capstan (POLE noun2).]
A. noun.
A simple mechanical device consisting of a grooved wheel or set of wheels over which a cord etc. may pass, mounted in a block, and used esp. for raising weights by pulling downward on the cord. ME.
A wheel or drum fixed on a shaft and turned by a belt etc. for the application or transmission of power, or to guide such a belt. E17.
Comb.: pulley-block a block or casing in which a pulley is mounted; pulley-wheel a grooved wheel of a pulley.
b. verb trans.
Raise or hoist with a pulley. L16.
Provide with a pulley; work by means of a pulley. M18.