Defn: Same as Water course.
WATERWEED
Wa"ter*weed`, n. (Bot.)
Defn: See Anacharis.
WATER WHEEL
Wa"ter wheel`.
1. Any wheel for propelling machinery or for other purposes, that is made to rotate by the direct action of water; — called an overshot wheel when the water is applied at the top, an undershot wheel when at the bottom, a breast wheel when at an intermediate point; other forms are called reaction wheel, vortex wheel, turbine wheel, etc.
2. The paddle wheel of a steam vessel.
3. A wheel for raising water; a noria, or the like.
WATER-WHITE
Wa"ter-white`, n. (Bot.)
Defn: A vinelike plant (Vitis Caribæa) growing in parched districts in the West Indies, and containing a great amount of sap which is sometimes used for quenching thirst.
WATER WILLOW
Wa"ter wil`low. (Bot.)