Definition of "nacelle"

(aviation)

1. The compartment that holds passengers on a dirigible, hot-air balloon, or other aerostat; a gondola.  examples

2. A separate streamlined enclosure mounted on an aircraft to house, originally, an engine, and now also cargo or crew.  examples

3. (archaic) The cockpit of an aircraft.

(by extension)

1. A hollow boat-shaped structure.  examples

2. An enclosure housing machinery or a motor.  examples

3. (electrical engineering) The part between the rotor and tower of a wind turbine.  examples

4. (nautical) The submersed providers of buoyancy of a SWATH-hulled boat.  examples

5. (road transport) A streamlined enclosure on the body or dashboard of a motor vehicle.  examples