2 definitions found From WordNet (r) 2.0 [wn]: windmill noun 1: a mill that is powered by the wind 2: generator that extracts usable energy from winds [syn: {aerogenerator}, {wind generator}] From The Collaborative International Dictionary of English v.0.44 [gcide]: Windmill \Wind"mill'\, noun 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.

Definitions retrieved from local copies of the freely distributed DICT client/server software and databases. Click here for database copyright information.