Nacelle (noun)

1. A streamlined housing that contains an aircraft engine, typically mounted above or below the wing.
2. A streamlined housing that contains some other mechanical or electrical equipment, typically mounted on the side of a wind turbine.

Origin:

The word nacelle comes from the french word "nacelle" which means a small boat or boat-shaped object. it was first used in the late 19th century, in reference to the streamlined housing of an aircraft engine.

Examples:

1. The airplane's nacelle was painted bright red, making it easy to spot on the runway.
2. The nacelle of the wind turbine was designed to minimize wind resistance and maximize power generation.
3. The plane's nacelle was damaged in the accident, and had to be replaced.
4. The nacelle of the wind turbine was designed to be easily accessible for maintenance.
5. The nacelle of the plane was designed to reduce drag and improve the plane's aerodynamics.