a streamlined enclosure on an aircraft, esp. for an engine
Origin of nacelleFrench from Late Latin navicella, diminutive of Classical Latin navis, a ship: see navy
- A separate streamlined enclosure on an aircraft or spacecraft for sheltering the crew or cargo or for housing an engine and usually its related components.
- A similar enclosure on a wind turbine that houses the energy-generating components, including the shaft, generator, and gearing, and to which the rotor and blades of the turbine are attached.
Origin of nacelleFrench dinghy, gondola from Old French nacele small boat from Late Latin nāvicella diminutive of Latin nāvis ship ; see nāu- in Indo-European roots.
Old French nacele (“small boat"), from Latin navicella. The Modern English spelling is under the influence of Middle French and Modern French nacelle.