Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A small or rudimentary wing.
  • noun A short, almost vertical stabilizing fin projecting from the tip of an aircraft wing.

from The Century Dictionary.

  • noun A little wing.
  • noun The pterygium, a lateral expansion on each side of the end of the rostrum, found in many weevils.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A little wing; a very small wing.
  • noun (Zoöl.) A bastard wing, or alula.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun aeronautics A winglike structure at a wingtip set at an angle to the plane of the wing designed to reduce drag by its effect on wingtip vortices.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

wing +‎ -let

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Examples

Comments

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  • The wing-tip device makes the wing more efficient by inhibiting the natural flow of air from the high pressure area below the wing to the low pressure area above the wing. This high-to-low flow is what generates the dangerous wing-tip vortex which can upset aircraft in the wake of the generating aircraft.

    October 18, 2012

  • Called a sharklet by the Europeans (Airbus).

    July 20, 2013