pulley

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See also: Pulley

English[edit]

A fixed pulley assembly
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Etymology[edit]

From Middle English puly, poley, from Old French poulie, polie (a pulley, windlass), from Medieval Latin polidia, plural mistaken for the feminine of neuter polidium, from Ancient Greek πολίδιον (polídion, little pivot), diminutive of πόλος (pólos, pivot, hinge, axis), from Proto-Indo-European *kʷel- (to turn). Associated with pull (verb) by folk etymology.

Pronunciation[edit]

  • IPA(key): /ˈpʊli/
  • (file)
  • Rhymes: -ʊli

Noun[edit]

pulley (plural pulleys)

  1. (engineering, countable) One of the simple machines; a sheave, a wheel with a grooved rim, in which a pulled rope or chain lifts an object (more useful when two or more pulleys are used together, as in a block and tackle arrangement, such that a small force moving through a greater distance can exert a larger force through a smaller distance).

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Verb[edit]

pulley (third-person singular simple present pulleys, present participle pulleying, simple past and past participle pulleyed)

  1. (transitive) To raise or lift by means of a pulley.