[wind-mil] 
| 1. | any of various machines for grinding, pumping, etc., driven by the force of the wind acting upon a number of vanes or sails. |
| 2. | (loosely) a wind generator; wind plant. |
| 3. | Aeronautics. a small air turbine with blades, like those of an airplane propeller, exposed on a moving aircraft and driven by the air, used to operate gasoline pumps, radio apparatus, etc. |
| 4. | an imaginary opponent, wrong, etc. (in allusion to Cervantes' Don Quixote): to tilt at windmills. |
| 5. | Aeronautics. (of a propeller engine or turbojet engine) to rotate or cause to rotate solely under the force of a passing airstream. |
| wind·mill (wĭnd'mĭl') n.
To move or cause to move like the wheel of a windmill; rotate sweepingly. |
