Here you will find one or more explanations in English for the word Nacelles.
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Nacelle
Nacelle Na*celle", n. [F.]
1. A small boat. [Obs.]
2. The basket suspended from a balloon; hence, the framework
forming the body of a dirigible balloon, and containing
the machinery, passengers, etc.
3. A boatlike, inclosed body of an a["e]roplane.
Meaning of Nacelles from wikipedia