FLAPS

flap, flaps

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

Source: WordNet® 3.1

Noun

flaps

plural of flap

Verb

flaps

Third-person singular simple present indicative form of flap

Source: Wiktionary

FLAP

Flap, n. Etym: [OE. flappe, flap, blow, bly-flap; cf. D. flap, and E. flap, v.]

Definition: Anything broad and limber that hangs loose, or that is attached by one side or end and is easily moved; as, the flap of a garment. A cartilaginous flap upon the opening of the larynx. Sir T. Browne.

2. A hinged leaf, as of a table or shutter.

3. The motion of anything broad and loose, or a stroke or sound made with it; as, the flap of a sail or of a wing.

4. pl. (Far.)

Definition: A disease in the lips of horses. Flap tile, a tile with a bent up portion, to turn a corner or catch a drip.

– Flap valve (Mech.), a valve which opens and shuts upon one hinged side; a clack valve.

Flap, v. t. [imp. & p. p. Flapped; p. pr. & vb. n. Flapping.] Etym: [Prob. of imitative origin; cf. D. flappen, E. flap, n., flop, flippant, fillip.]

1. To beat with a flap; to strike. Yet let me flap this bug with gilded wings. Pope.

2. To move, as something broad and flaplike; as, to flap the wings; to let fall, as the brim of a hat. To flap in the mouth, to taunt. [Obs.] W. Cartwright.

Flap, v. i.

1. To move as do wings, or as something broad or loose; to fly with wings beating the air. The crows flapped over by twos and threes. Lowell.

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

Source: Webster’s Unabridged Dictionary 1913 Edition