Flap may refer to:
Arts, entertainment, and media
- Flap (film), a 1970 American film
- Flap, a boss character in the arcade game Gaiapolis
- Flap, a minor character in the film Little Nemo: Adventures in Slumberland
Biology and healthcare
- Flap (surgery), a surgical technique involving movement of vascularized tissue
- Free flap, a specific kind of surgical flap
- Flapping tremor is a medical condition, also called asterixis
- 5-lipoxygenase activating protein (FLAP)
Computing and networks
- The phenomenon of some variable or resource oscillating or alternating rapidly between two states
- Route flapping, when a network router flips between different routes
- Link flap, errant behavior in a communications link
Engineering and design
- Flap (aeronautics), a lift augmentation device on an airplane wing, often near the trailing edge
- Flapping, the up-and-down motion of a helicopter rotor
- Flap, any hinged plate often used as a cover or a simple one-way valve
- Sluice or flap gate, a pressure driven water flow control device between a channel and other water body
- Bum flap (or butt flap), a separately removable part of underwear (un)covering the buttocks
- Mudflap, a guard for tires
- Pet door or pet flap
- Roof flap, an aerodynamic feature of race cars
Linguistics
- Flap consonant, a sound produced by brief contact between one articulator (such as the tongue) and another (such as the roof of the mouth)
- Flapping, a process by which a or a before an unstressed vowel is pronounced as a flap consonant
Other uses
- Flapping, one of the basic mechanics of bird flight
- Hand flapping, a common form of self-stimulatory behaviour
See also
- Flapper (disambiguation)
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