winglet

From wing +‎ -let.

• IPA^(key): /ˈwɪŋlɪt/

winglet (plural winglets)

1. A little wing.
2. (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.
3. The bastard wing or alula of a bird.
4. The pterygium of a weevil.

• (wingtip device): sharklet

• wing fence
• Wingtip device on Wikipedia.Wikipedia
• Category:Wingtip devices (aircraft wings) on Wikimedia Commons.Wikimedia Commons

• welting