a movable part of an airplane wing, used to increase lift or drag, especially when taking off or landing. used often in the plural.

To beat with a flap; to strike.

To move, as something broad and flaplike; as, to flap the wings; to let fall, as the brim of a hat.

To move as do wings, or as something broad or loose; to fly with wings beating the air.

To fall and hang like a flap, as the brim of a hat, or other broad thing.

Movable surface forming part of leading or trailing edge of an aerofoil and able to hing downwards or move rearwards on tracks to alter the wing's camber, cross-section, and area to enhance low-speed lift and drag and thereby reduce approach and landing speeds.

Top layer of a laminate material, which is lifted to insert the photograph prior to laminating.

movable section at the back of a wing extended backward to create more lift at takeoff and before landing

Control surface located on the inner portion of a wing that extends outward and deflects downward to increase the camber and lift of the wing.

any broad thin and limber covering attached at one edge; hangs loose or projects freely; "he wrote on the flap of the envelope"

a movable piece of tissue partly connected to the body

a movable airfoil that is part of an aircraft wing; used to increase lift or drag

move with a thrashing motion; "The bird flapped its wings"; "The eagle beat its wings and soared high into the sky"

move with a flapping motion; "The bird's wings were flapping"

a partly attached piece of skin which

A fake, movable insert that lies against the top or bottom of a box. It is used to hide a card. (Book 4)

Surface mounted on the trailing edge of a wing to increase lift during take-off/landing

movable surface that increases the lift or drag of an aircraft

A surface hinged to the trailing edge of the wings that can be lowered partially, to increase lift, or fully, to increase drag.

The control surface on a wing closest to the fuselage. Moves up or down, to increase lift or drag.

Typically made with duct tape, a flap adds drag to a boomerang, and is a quick and easy way to adapt to stronger winds than a given boomerang would usually cope with, or to slow the spin of a boomerang. Typically a flap is 10-20 mm in width, and 1-15 mm in height. Placing a flap nearer the end of a wing will have a greater effect than placing it nearer the elbow. Somewhat contradictorily, placing a flap close to the trailing edge can, like a spoiler on a car, cause downforce at that point, thus increasing the angle of attack and therefore resulting in a boomerang that flies higher. Other placements commonly adopted are trailing in the plane of the wing, or at the centre of multi-blade boomerangs to stabilise their descent.

Flaps are hinged surfaces on the trailing or leading edge of the wings of a fixed-wing aircraft which, when deployed, increase the lift and drag of a wing.

a piece of scalp

a section of living tissue that carries its own blood supply and is moved from one area of the body to another

a thicker piece of skin tissue that is removed together with its own blood supply

a unit of tissue that is transferred from one site (donor site) to another (recipient site) while maintaining its own blood supply

An island of skin, fat, tissue and sometimes muscle, moved from somewhere on the body to the chest to reconstruct a breast.

a flap is a segment of live skin and subcutaneous tissue which is moved from one location of the body to another with a direct blood supply (pedicule).

a hair-bearing section of scalp removed from one area, then used to replace bald skin where needed.

A mass of partially detached tissue. A skin flap contains only skin. Flaps of hair-laden scalp can be used to treat baldness.

A portion of tissue, which may include muscle, fat and skin, with its blood supply moved from one part of the body to another.

tissue transferred from one part of the body to another to repair defects

The single rapid contact of two organs of speech, eg the movement of the tongue across the alveolar ridge in Spanish [r].

Rapid interface state changes from up to down and down to up within a short period of time.

A disturbance, general excitement.

An "extra" section added to standard size paper which is then folded over. Normally used to highlight some aspect of the offer or to act as the response device.