waterwheel

Từ điển Oxford Advanced Learner 8th

water·wheel [waterwheel waterwheels] BrE [ˈwɔːtəwiːl] NAmE [ˈwɔːtərwiːl] NAmE [ˈwɑːtərwiːl] noun
a wheel turned by the movement of water, used, especially in the past, to drive machinery