[1] : The Collaborative International Dictionary of English v.0.48

turbine \tur"bine\ t^ur"bi^n, n. l. turbo, -inis, that
   which spins or whirls round, whirl.
   1. a water wheel, commonly horizontal, variously constructed,
      but usually having a series of curved floats or buckets,
      against which the water acts by its impulse or reaction in
      flowing either outward from a central chamber, inward from
      an external casing, or from above downward, etc.; -- also
      called turbine wheel.
      1913 webster

   note: in some turbines, the water is supplied to the wheel
         from below, instead of above. turbines in which the
         water flows in a direction parallel to the axis are
         called parallel-flow turbines.
         1913 webster

   2. a type of rotary engine with a set of rotating vanes,
      diagonally inclined and often curved, attached to a
      central spindle, and obtaining its motive force from the
      passage of a fluid, as water, steam, combusted gases, or
      air, over the vanes. water turbines are frequently used
      for generating power at hydroelectric power stations, and
      steam turbines are used for generating power from coal- or
      oil-fired electric power stations. turbines are also found
      in jet engines, and in some automobile engines.

   note: in the 1913 dictionary, the turbine was further
         decribed thus: "there are practically only two distinct
         kinds, and they are typified in the de laval and the
         parsons and curtis turbines. the

   de laval turbine is an impulse turbine, in which steam
      impinges upon revolving blades from a flared nozzle. the
      flare of the nozzle causes expansion of the steam, and
      hence changes its pressure energy into kinetic energy. an
      enormous velocity 30,000 revolutions per minute in the 5
      h. p. size is requisite for high efficiency, and the
      machine has therefore to be geared down to be of practical
      use. some recent development of this type include turbines
      formed of several de laval elements compounded as in the
      ordinary expansion engine. the parsons turbine is an
      impulse-and-reaction turbine, usually of the axial type.
      the steam is constrained to pass successively through
      alternate rows of fixed and moving blades, being expanded
      down to a condenser pressure of about 1 lb. per square
      inch absolute. the curtis turbine is somewhat simpler than
      the parsons, and consists of elements each of which has at
      least two rows of moving blades and one row of stationary.
      the bucket velocity is lowered by fractional velocity
      reduction. both the parsons and curtis turbines are
      suitable for driving dynamos and steamships directly. in
      efficiency, lightness, and bulk for a given power, they
      compare favorably with reciprocating engines."
      webster 1913 suppl. +pjc
see also:
turbine wheel de laval turbine 

[2] : 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
see also:
overshot wheel undershot wheel breast wheel reaction wheel vortex wheel turbine wheel 

Turbine >> T Words
Turbine, definition of term: Turbine
turbine_pag1.html

Ratchet Wheel >> R Words
Ratchet Wheel, definition of term: Ratchet Wheel
ratchet+wheel_pag1.html

Prayer Wheel >> P Words
Prayer Wheel, definition of term: Prayer Wheel
prayer+wheel_pag1.html

Roulette Wheel >> R Words
Roulette Wheel, definition of term: Roulette Wheel
roulette+wheel_pag1.html

Potters Wheel >> P Words
Potters Wheel, definition of term: Potters Wheel
potters+wheel_pag1.html

Star Wheel >> S Words
Star Wheel, definition of term: Star Wheel
star+wheel_pag1.html

Water Wheel >> W Words
Water Wheel, definition of term: Water Wheel
water+wheel_pag1.html

Steering Wheel >> S Words
Steering Wheel, definition of term: Steering Wheel
steering+wheel_pag1.html

Pelton Wheel >> P Words
Pelton Wheel, definition of term: Pelton Wheel
pelton+wheel_pag1.html

Spinning Wheel >> S Words
Spinning Wheel, definition of term: Spinning Wheel
spinning+wheel_pag1.html

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