- An artificial cloud made by the exhaust of jet aircraft or wingtip vortex, vortices that precipitate a stream of tiny ice crystals in moist, frigid upper air.
Etymology: (blend, condensation, trail)
- French: traí®née de condensation , traí®née de vapeur , traí®née blanche
- German: Kondensstreifen
- Spanish: estela
- Spanish, estela
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