A water-wheel, in which the water is admitted to the float-board nearly on a level with the axle.
1759. Smeaton, in Phil. Trans., LI. 137. To examine the effects when the impulse and weight are combined, as in the several kinds of breast-wheels, &c.
1831. Lardner, Hydrostatics, x. 203. A breast wheel partakes of the nature of the overshot and undershot wheels.
