Definition of windmill noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈwɪndmɪl//
    ; NAmE NAmE//ˈwɪndmɪl//
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  1. 1 a building with machinery for grinding grain into flour that is driven by the power of the wind turning long arms (called sails ) See related entries: Buildings
  2. 2a tall thin structure with parts that turn round, used to change the power of the wind into electricity
  3. 3(British English) (North American English pinwheel) a toy with curved plastic parts that form the shape of a flower which turns round on the end of a stick when you blow on it
  4. Idioms to waste your energy attacking imaginary enemies From Cervantes’ novel Don Quixote, in which the hero thought that the windmills he saw were giants and tried to fight them.
See the Oxford Advanced American Dictionary entry: windmill

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