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

windmill \wind"mill`\, n.
   a mill operated by the power of the wind, usually by the
   action of the wind upon oblique vanes or sails which radiate
   from a horizontal shaft. --chaucer.
   1913 webster

[2] : WordNet (r) 2.0

windmill
     n 1: a mill that is powered by the wind
     2: generator that extracts usable energy from winds syn: aerogenerator,
         wind generator
see also:
aerogenerator wind generator 

Windmill >> W Words
Windmill, definition of term: Windmill
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