pulley

[ pool-ee ]

/ ˈpʊl i /

SEE SYNONYMS FOR pulley ON THESAURUS.COM

noun, plural pul·leys.

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.

a combination of such wheels in a block, or of such wheels or blocks in a tackle, to increase the force applied.

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.

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

Words nearby pulley

pullback, pull date, pulldown, pulled, pullet, pulley, pulley bone, pulley stile, pull hitter, pull-in, pulling boat

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for pulley

So we had to have a pulley system where he was lowered on cables.
Rob Reiner on the State of Romcoms, ‘The Princess Bride’s’ Alternate Ending, and the Red Viper|Marlow Stern|July 27, 2014|DAILY BEAST
Bullock died while attempting to fix one of the presses in 1867: After it became stuck, he tried to kick a belt onto a pulley.
The Segway Disaster and Other Deadly Inventions|The Daily Beast|September 27, 2010|DAILY BEAST
A purchase is obtained by throwing a pulley and rope over a nearby jack-pine, and the boat is pulled out bodily from the water.
The New North|Agnes Deans Cameron
They washed in a copper bucket that hung beside a pulley well.
The Lee Shore|Rose Macaulay

Formerly a bucket was lowered by means of a pulley to bring up the rainwater that had been gathered from the roof of the house.
The Three Eyes|Maurice Leblanc
The resulting friction of the rope on the pulley increases the load.
The Boy Mechanic, Book 2|Various
The pulley is provided with a friction clutch operated by the treadle, shown.
Modern Machine-Shop Practice, Volumes I and II|Joshua Rose

British Dictionary definitions for pulley

pulley

/ (ˈpʊlɪ) /

noun

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

a number of such wheels pivoted in parallel in a block, used to raise heavy loads

a wheel with a flat, convex, or grooved rim mounted on a shaft and driven by or driving a belt passing around it

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for pulley

pulley

[ pul′ē ]

A machine consisting of a wheel over which a pulled rope or chain runs to change the direction of the pull used for lifting a load. Combinations of two or more pulleys working together reduce the force needed to lift a load. See also block and tackle.

单词	pulley
释义	pulley [ pool-ee ] / ˈpʊl i / SEE SYNONYMS FOR pulley ON THESAURUS.COM noun, plural pul·leys. 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. a combination of such wheels in a block, or of such wheels or blocks in a tackle, to increase the force applied. 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. 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 Words nearby pulley pullback, pull date, pulldown, pulled, pullet, pulley, pulley bone, pulley stile, pull hitter, pull-in, pulling boat Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for pulley So we had to have a pulley system where he was lowered on cables. Rob Reiner on the State of Romcoms, ‘The Princess Bride’s’ Alternate Ending, and the Red Viper\|Marlow Stern\|July 27, 2014\|DAILY BEAST Bullock died while attempting to fix one of the presses in 1867: After it became stuck, he tried to kick a belt onto a pulley. The Segway Disaster and Other Deadly Inventions\|The Daily Beast\|September 27, 2010\|DAILY BEAST A purchase is obtained by throwing a pulley and rope over a nearby jack-pine, and the boat is pulled out bodily from the water. The New North\|Agnes Deans Cameron They washed in a copper bucket that hung beside a pulley well. The Lee Shore\|Rose Macaulay Formerly a bucket was lowered by means of a pulley to bring up the rainwater that had been gathered from the roof of the house. The Three Eyes\|Maurice Leblanc The resulting friction of the rope on the pulley increases the load. The Boy Mechanic, Book 2\|Various The pulley is provided with a friction clutch operated by the treadle, shown. Modern Machine-Shop Practice, Volumes I and II\|Joshua Rose British Dictionary definitions for pulley pulley / (ˈpʊlɪ) / noun 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 a number of such wheels pivoted in parallel in a block, used to raise heavy loads a wheel with a flat, convex, or grooved rim mounted on a shaft and driven by or driving a belt passing around it 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 Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to pulley wheel, ring, block, sheave Scientific definitions for pulley pulley [ pul′ē ] A machine consisting of a wheel over which a pulled rope or chain runs to change the direction of the pull used for lifting a load. Combinations of two or more pulleys working together reduce the force needed to lift a load. See also block and tackle. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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pulley

noun, plural pul·leys.

Origin of pulley

OTHER WORDS FROM pulley

Words nearby pulley

Example sentences from the Web for pulley

British Dictionary definitions for pulley

noun

Word Origin for pulley

Words related to pulley

Scientific definitions for pulley