# flap

Also found in: Dictionary, Thesaurus, Medical.

## flap

1. Aviation a movable surface fixed to the trailing edge of an aircraft wing that increases lift during takeoff and drag during landing
2. Surgery a piece of tissue partially connected to the body, either following an amputation or to be used as a graft

## flap

[flap]
(aerospace engineering)
Any control surface, such as a speed brake, dive brake, or dive-recovery brake, used primarily to increase the lift or drag on an airplane, or to aid in recovery from a dive.
Any rudder attached to a rocket and acting either in the air or within the jet stream.

## flap

i. Auxiliary controls built into the wings and used to increase the camber. Flaps may be on the leading or the trailing edges. Trailing edge flaps reduce the stalling angle, whereas leading edge flaps increase the stalling angle when referred to the chord line of the original nonflapped airfoil. Flaps permit aircraft to fly at a lower speed, permitting better control on takeoff and a lower approach speed for landing. Flaps also increase drag, permitting aircraft to descend at a steeper angle. There are various kinds of flaps, such as splits, fowlers, zaps, and slotted.
ii. Short for cowl flaps. See cowl flap.
iii. The up-and-down movement of the tip of a helicopter rotor blade. See flapping.

## FLAP

(1)
A symbolic mathematics package for IBM 360.

["FLAP Programmer's Manual", A.H. Morris Jr., TR-2558 (1971) US Naval Weapons Lab].

[Sammet 1969, p. 506].

## flap

(storage, jargon)
To unload a DECtape (so it goes flap, flap, flap). Old-time hackers at MIT tell of the days when the disk was device 0 and microtapes were 1, 2, etc. and attempting to flap device 0 would instead start a motor banging inside a cabinet near the disk.

The term is used, by extension, for unloading any magnetic tape. See also macrotape. Modern cartridge tapes no longer actually flap, but the usage has remained.

The term could well be re-applied to DEC's TK50 cartridge tape drive, a spectacularly misengineered contraption which makes a loud flapping sound, almost like an old reel-type lawnmower, in one of its many tape-eating failure modes.

(networking)

## FLAP

The communications protocol used by AOL Instant Messenger (AIM). FLAP runs over TCP/IP and provides the header format for transmitting IM commands and data. It includes the SNAC data type, which is the primary data structure transmitted between clients and servers. See OSCAR.
References in periodicals archive ?
The use of buccal advancement flap only is asso- ciated with a high risk of postoperative dehiscence, and our technique of using both flaps together tends to minimize postoperative risks of wound dehiscence.
In a report of 350 men with filarial genital lymphedema, all patients underwent surgical excision of lymphedematous tissue with split thickness skin graft to the penile shaft and scrotal reconstruction with advancement flaps; this report yielded an overall complication rate of 19.4%.[sup.8] This included a 10.2% rate of infection, 8.2% rate of hematoma and 7.3% recurrence of lymphedema, which the authors attributed to discontinuation of antifilarial drugs.[sup.8] In one of our patients, a postoperative infection occurred, which was successfully treated with debridement, antibiotics and a wound vac.
A single pedicle advancement flap was applied successfully to cover and heal the pododermatitis lesion in this hawk.
The Y-U antral advancement flap pyloroplasty was performed on dogs included in group A while the B was subjected to inverted pylorus duodenal plasty.
Akoz, "Freestyle perforator-based V-Y advancement flap for reconstruction of soft tissue defects at various anatomic regions," Annals of Plastic Surgery, vol.
Recurrence rates began to decline significantly as advancement flap techniques with these fundamental properties, such as the Limberg flap, began to be used in pilonidal sinus surgery.
For sacral pressure sores, we performed gluteus maximus myocutaneous flaps as rotation flaps, V-Y advancement flaps and gluteal faciocutaneous flaps.
Key Words: Oroantral fistula, buccal advancement flap, chronic sinusitis.
Reconstruction following the 19 surgeries was achieved with a primary closure in 4 cases, a local advancement flap in 4, a split-thickness skin graft in 3, a pectoralis major myocutaneous flap in 3, a radial forearm free flap in 3, a trapezius flap in 1, and a scapula flap in 1 (table 2).
Reconstruction of finger tip amputations with advancement flap and free nail bed graft.

Site: Follow: Share:
Open / Close