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Webster 1913 Edition

Flap

Flap

,
Noun.
[OE.
flappe
,
flap
, blow, bly-flap; cf. D.
flap
, and E.
flap
,
Verb.
]
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.)
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

,
Verb.
T.
[
imp. & p. p.
Flapped
;
p. pr. & vb. n.
Flapping
.]
[Prob. of imitative origin; cf. D.
flappen
, E.
flap
,
Noun.
, 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

,
Verb.
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.

Webster 1828 Edition

Flap

FLAP

,
Noun.
[L. alapa, a slap. It seems difficult to separate flap from clap, slap, flabby, lap, &c.]
1.
Any thing broad and limber that hangs loose, or is easily moved.
A cartilaginous flap on the opening of the larynx.
We say, the flap of a garment, the flap of the ear, the flap of a hat.
2.
The motion of any thing broad and loose, or a stroke with it.
3.
The flaps, a disease in the lips of horses.

FLAP

,
Verb.
T.
1.
To beat with a flap.
Yet let me flap this bug with gilded wings.
2.
To move something broad; as, to flap the wings.
3.
To let fall, as the brim of a hat. [This sense seems to indicate a connection with lap.]

FLAP

, v.i.
1.
To move as wings, or as something broad or loose.
2.
To fall, as the brim of a hat, or other broad thing.

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