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| 1. |
flap - any broad thin and limber covering attached at one edge; hangs loose or projects freely; "he wrote on the flap of the envelope" |
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covering the act of protecting something by covering it
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barndoor an opaque adjustable flap on a lamp fixture; used in photography to cut off light from particular areas
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coattail the loose back flap of a coat that hangs below the waist
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codpiece (15th-16th century) a flap for the crotch of men's tight-fitting breeches
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earflap,
earlap one of two flaps attached to a cap to keep the ears warm
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dag,
jag a bout of drinking or drug taking
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lap,
overlap movement once around a course; "he drove an extra lap just for insurance"
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pocket flap a flap that covers the access to a pocket
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fly,
fly sheet,
rainfly,
tent-fly,
tent flap (baseball) a hit that flies up in the air
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tongue the flap of material under the laces of a shoe or boot
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| 2. |
flap - the motion made by flapping up and down |
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flapping,
flutter,
fluttering |
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undulation,
wave wavelike motion; a gentle rising and falling in the manner of waves
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| 3. |
flap - a movable piece of tissue partly connected to the body |
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animal tissue the tissue in the bodies of animals
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uvula a small pendant fleshy lobe at the back of the soft palate
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soft palate,
velum a muscular flap that closes off the nasopharynx during swallowing or speaking
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protective fold a flap of tissue that protects what it covers
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cusp,
leaflet point formed by two intersecting arcs (as from the intrados of a Gothic arch)
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| 4. |
flap - a movable airfoil that is part of an aircraft wing; used to increase lift or drag |
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flaps |
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aerofoil,
airfoil,
control surface,
surface a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
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wing a movable organ for flying (one of a pair)
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landing flap a flap on the underside of the wing that is lowered to slow the plane for landing
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| verb |
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flap - move noisily; "flags flapped in the strong wind" |
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beat,
pound,
thump come out better in a competition, race, or conflict; "Agassi beat Becker in the tennis championship"; "We beat the competition"; "Harvard defeated Yale in the last football game"
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| 2. |
flap - pronounce with a flap, of alveolar sounds |
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articulate,
enounce,
enunciate,
pronounce,
say,
sound out express or state clearly
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