pulley

名词 n. 动词 v.
中文释义
英 /ˈpʊli/|/ˈpɵlɪj/    美 /ˈpʊli/

英文释义

名词 n.
  1. 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). countable
    — These pulleys […] placed collaterally.
  2. Annular ligament of the finger.
动词 v.
  1. To raise or lift by means of a pulley. transitive
    — [a mine]is digg'd out with ease, being soft, and is between a white Clay and Chalk at first; but being pulley'd up with the open Air, it receives a crusty kind of hardness

词形变化

pulleys plural pullies obsolete,plural pulleys present,singular,third-person pulleying participle,present pulleyed participle,past pulleyed past

词汇关系

上位词
hoist simple machine
下位词
polyspast block and tackle winch
衍生词
micropulley motor pulley mule pulley pulley block pulley bone pulleyless pulleylike pulley shell rubbish pulley speed pulley
并列词
crane inclined plane lever screw wedge
部分词
bearing chain rigging rope wheel

词源

词源 1
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.
词源 2
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.
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