: a streamlined enclosure (as for an engine) on an aircraft
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Collins Aerospace will design and build the nacelle structure, which includes the engine inlet, fan cowl, fan duct, fairings and engine support structure.—Jerrold Lundquist, Forbes.com, 28 Mar. 2025 Those characteristic Starfleet nacelles are kept well away from the ship to protect the crew from an unwanted warping.—Richard Edwards, Space.com, 14 Mar. 2025 The equipment sits on the turbine’s nacelle and emits ultrasonic sound between 20 and 50 kilohertz—the same frequencies North American bats use for echolocation.—IEEE Spectrum, 7 Jan. 2018 While most parts from old wind turbines can be recycled or reused, including the shell, nacelle, and metallic internal components, the long blades are typically made from fiberglass.—New Atlas, 14 Feb. 2025 See All Example Sentences for nacelle
Word History
Etymology
French, literally, small boat, from Late Latin navicella, diminutive of Latin navis ship — more at nave
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