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2 definitions found
 for Vortex wheel
From The Collaborative International Dictionary of English v.0.48 :

  Vortex \Vor"tex\, n.; pl. E. Vortexes, L. Vortices. [L.
     vortex, vertex, -icis, fr. vortere, vertere, to turn. See
     [1913 Webster]
     1. A mass of fluid, especially of a liquid, having a whirling
        or circular motion tending to form a cavity or vacuum in
        the center of the circle, and to draw in towards the
        center bodies subject to its action; the form assumed by a
        fluid in such motion; a whirlpool; an eddy.
        [1913 Webster]
     2. (Cartesian System) A supposed collection of particles of
        very subtile matter, endowed with a rapid rotary motion
        around an axis which was also the axis of a sun or a
        planet. Descartes attempted to account for the formation
        of the universe, and the movements of the bodies composing
        it, by a theory of vortices.
        [1913 Webster]
     3. (Zool.) Any one of numerous species of small Turbellaria
        belonging to Vortex and allied genera. See Illustration
        in Appendix.
        [1913 Webster]
     Vortex atom (Chem.), a hypothetical ring-shaped mass of
        elementary matter in continuous vortical motion. It was
        conveniently regarded in certain early mathematical models
        as the typical form and structure of the chemical atom,
        but is no longer considered a useful model, having been
        superseded by quantum mechanics.
     Vortex wheel, a kind of turbine.
        [1913 Webster +PJC]

From The Collaborative International Dictionary of English v.0.48 :

  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.
        [1913 Webster]
     2. The paddle wheel of a steam vessel.
        [1913 Webster]
     3. A wheel for raising water; a noria, or the like.
        [1913 Webster]

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