pulley

play
noun pul·ley \ˈpu̇-lē\

Definition of pulley

plural

pulleys

  1. 1 :  a sheave or small wheel with a grooved rim and with or without the block in which it runs used singly with a rope or chain to change the direction and point of application of a pulling force and in various combinations to increase the applied force especially for lifting weights

  2. 2 :  a pulley or pulleys with ropes to form a tackle that constitutes one of the simple machines

  3. 3 :  a wheel used to transmit power by means of a band, belt, cord, rope, or chain passing over its rim

Recent Examples of pulley from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pulley.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Illustration of pulley

Origin and Etymology of pulley

Middle English poley, pully, from Anglo-French pulie, probably ultimately from Greek polos axis, pole — more at pole


PULLEY Defined for English Language Learners

pulley

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noun

Definition of pulley for English Language Learners

  • : a wheel or set of wheels that is used with a rope, chain, etc., to lift or lower heavy objects


PULLEY Defined for Kids

pulley

play
noun pul·ley \ˈpu̇-lē\

Definition of pulley for Students

plural

pulleys

  1. :  a wheel over which a belt, rope, or chain is pulled to lift or lower a heavy object


Medical Dictionary

pulley

play
noun pul·ley \ˈpu̇l-ē\

Medical Definition of pulley



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