'Windmill' definitions:
Definition of 'windmill'
From: WordNet
noun
A mill that is powered by the wind
noun
Generator that extracts usable energy from winds [syn: windmill, aerogenerator, wind generator]
Definition of 'Windmill'
From: GCIDE
- 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]