pul·ley (p l  )n. pl. pul·leys 1. A simple machine consisting essentially of a wheel with a grooved rim in which a pulled rope or chain can run to change the direction of the pull and thereby lift a load. 2. A wheel turned by or driving a belt. [Middle English poley, from Old French polie and from Medieval Latin poliva, both ultimately from Greek polos, axis; see kwel-1 in Indo-European roots.] |
pulley [ˈpʊlɪ]
n
1. (Engineering / Mechanical Engineering) 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.
2. (Engineering / Mechanical Engineering) a number of such wheels pivoted in parallel in a block, used to raise heavy loads
3. (Engineering / Mechanical Engineering) a wheel with a flat, convex, or grooved rim mounted on a shaft and driven by or driving a belt passing around it
[C14 poley, from Old French polie, from Vulgar Latin polidium (unattested), apparently from Late Greek polidion (unattested) a little pole, from Greek polos axis]
| pulley (pl) 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. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  pulley - a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the ropeblock and tackle - pulley blocks with associated rope or cable bullock block, bollock - a pulley-block at the head of a topmast fairlead - a pulley-block used to guide a rope forming part of a ship's rigging to avoid chafing idle pulley, idle wheel, idler pulley - a pulley on a shaft that presses against a guide belt to guide or tighten it simple machine, machine - a device for overcoming resistance at one point by applying force at some other point |
Translations
pulley
n pulley [ˈpuli]
a wheel over which a rope etc can pass in order to lift heavy objects. katrol بَكَرَه скрипец kladka trisse die Rolle τροχαλία polea (tali)plokk قرقره väkipyörä poulie גַלגֶלֶת चरखी csiga kerekan talía, blökk; trissa puleggia, carrucola 滑車 도르래 skridinys trīsis kapi katrol trinse, reimskive blok roldana scripete шкив; блок kladka škripec kotur block, talja รอก makara, palanga 滑輪 шків, блок چرخي cái ròng rọc 滑轮
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