noun. a streamlined enclosure for an aircraft engine.
- nacele (Old French (842-ca. 1400))
- navicella (Latin)
Example sentences of the word nacelle
Connect the windmill blades, nacelle, turbine, and wire, and set them at the top of the tower.
2. Foreign word
The main body of a wind turbine is the *nacelle*, which houses the generator as well as a series of drive gears.
3. Noun, singular or mass
When the wind blows, the controller orients the nacelle to face it, and the specially shaped blades begin slowly rotating.
The nacelle usually includes a gear box to allow the blades to turn, but for a basic windmill, a shaft is all you need.