释义 |
waterwheel \ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷\ noun Etymology: Middle English waterwhele, from water + whele wheel — more at wheel 1. : a wheel made to rotate by direct action of water: as a. : a vertical wheel on a horizontal shaft moved at a comparatively low velocity by the action or weight of the water on or in floats or buckets on its rim — see breast wheel, overshot wheel, poncelet wheel b. : a turbine operated by water 2. : a wheel (as a noria) for raising water 3. : the paddle wheel of a steamship 4. : a synchronized swimming stunt which is executed with the body lying on the side and in which the knees are drawn toward the chest and the body is propelled in a circle by alternate pedaling movements of the legs and feet [waterwheel 1] |