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.

 

© Webster 1913.

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