noun (plural pulleys)(also pulley wheel)
- a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights. Compare with block (sense 7 of the noun).
verb (pulleys, pulleying, pulleyed)[with object]
Middle English: from Old French polie, probably from a medieval Greek diminutive of polos 'pivot, axis'