flap vs flutter what difference

what is difference between flap and flutter

English

Pronunciation

• IPA^(key): /flæp/
• Rhymes: -æp

Etymology 1

From Middle English flap, flappe (“a slap; blow; buffet; fly-flap; something flexible or loose; flap”), related to Middle Dutch flabbe (“a blow; slap on the face; fly-flap; flap”) (modern Dutch flap (“flap”)), Middle Low German flabbe, vlabbe, flebbe, from the verb (see below). Related also to English flab and flabby.

Noun

flap (plural flaps)

1. Anything broad and flexible that hangs loose, or that is attached by one side or end and is easily moved.
3. A hinged leaf.

4. (aviation) A hinged surface on the trailing edge of the wings of an aeroplane.
5. A side fin of a ray.

   Synonym: wing

6. The motion of anything broad and loose, or a sound or stroke made with it.
7. A controversy, scandal, stir, or upset.

   Synonyms: see Thesaurus:commotion
9. (phonetics) A consonant sound made by a single muscle contraction, such as the sound [[ɾ]] in the standard American English pronunciation of body.

   Synonym: tap

10. (surgery) A piece of tissue incompletely detached from the body, as an intermediate stage of plastic surgery.
11. (veterinary medicine) A disease in the lips of horses.
12. (slang, vulgar, chiefly in the plural) The labia, the vulva.
13. (obsolete) A blow or slap (especially to the face).
    • 1450, Palladius on Husbondrieː

      Ware the horn and heels lest they fling a flap to thee.

    • a1500 The Prose Merlinː

      The squire lift up his hand and gave him such a flap that all they in the chapel might it hear.

14. (obsolete) A young prostitute.
    • 1631, James Mabbe, Celestina IX. 110

      Fall to your flap, my Masters, kisse and clip. […] Come hither, you foule flappes.

Derived terms

• cat flap
• (aeroplane): flaperon
• flap seat

Translations

See also

• flap on Wikipedia.Wikipedia
• fold
• lappet

Etymology 2

From Middle English flappen (“to flap, clap, slap, strike”), related to Dutch flappen (“to flap”), German Low German flappen (“to flap”), German flappen (“to flap”), Dutch flabberen (“to flit, flap”). Probably ultimately imitative.

Verb

flap (third-person singular simple present flaps, present participle flapping, simple past and past participle flapped)

1. (transitive) To move (something broad and loose) up and down.

   The crow slowly flapped its wings.
2. (intransitive) To move loosely back and forth.

   The flag flapped in the breeze.
3. (computing, telecommunications, intransitive) Of a resource or network destination: to be advertised as being available and then unavailable (or available by different routes) in rapid succession.

Translations

Derived terms

• aflap
• flapper
• flappingly
• unflappable

Anagrams

• PLAF

Dutch

Etymology

From Middle Dutch flabbe, probably ultimately imitative.

Pronunciation

Noun

flap m (plural flappen, diminutive flapje n)

1. flap (something flexible that is loose)
2. (colloquial) banknote

Derived terms

• appelflap
• flappentap
• flappen tappen

Volapük

Noun

flap (nominative plural flaps)

1. blow, hit

Declension

Derived terms

• flapan
• flapön

English

Etymology

From Middle English floteren, from Old English floterian, flotorian (“to float about, flutter”), from Proto-Germanic *flutrōną, frequentative of Proto-Germanic *flutōną (“to float”), equivalent to float +‎ -er (frequentative suffix). Cognate with Low German fluttern, fluddern (“to flutter”), German flittern, Dutch fladderen; also Albanian flutur (“butterfly”). More at float.

Pronunciation

• (General American) IPA^(key): /ˈflʌtɚ/, [ˈflʌɾɚ]
• (Received Pronunciation) IPA^(key): /ˈflʌtə/
• Rhymes: -ʌtə(ɹ)

Verb

flutter (third-person singular simple present flutters, present participle fluttering, simple past and past participle fluttered)

1. (intransitive) To flap or wave quickly but irregularly.
2. (intransitive) Of a winged animal: to flap the wings without flying; to fly with a light flapping of the wings.
3. (intransitive, aerodynamics) To undergo divergent oscillations (potentially to the point of causing structural failure) due to a positive feedback loop between elastic deformation and aerodynamic forces.
4. (transitive) To cause something to flap.

5. (transitive) To drive into disorder; to throw into confusion.
6. (intransitive) To be in a state of agitation or uncertainty.
7. (intransitive, obsolete) To be frivolous.
8. (espionage, slang) To subject to a lie detector test.
   • 1978, Edward Jay Epstein, Legend: The Secret World of Lee Harvey Oswald (page 38)

     This was the first time that Nosenko had been subjected to a lie detector — or what the CIA called fluttering. The Soviet Union did not use such devices for interrogation.

   • 2002, Paul Eddy, Flint’s Law (page 90)

     “Anyway, she cracked and we fluttered her and—”
     “Fluttered her?”
     “Sorry, gave her a polygraph, a lie detector test. And she passed, more or less, […]

Translations

Noun

flutter (countable and uncountable, plural flutters)

1. The act of fluttering; quick and irregular motion.
   • c. 1838, Richard Monckton Milnes, The Forest

     the chirp and flutter of some single bird

2. A state of agitation.

   • flutter of spirits

   • 1900, Henry James, The Soft Side The Third Person Chapter 3

     Their visitor was an issue – at least to the imagination, and they arrived finally, under provocation, at intensities of flutter in which they felt themselves so compromised by his hoverings that they could only consider with relief the fact of nobody’s knowing.

3. An abnormal rapid pulsation of the heart.
4. (uncountable, aerodynamics) An extremely dangerous divergent oscillation caused by a positive feedback loop between the elastic deformation of an object and the aerodynamic forces acting on it, potentially resulting in structural failure.
5. (Britain) A small bet or risky investment.
   • 30 July, 2009, Eurosport, Gray Matter: How will Schu do?

     So with his victory odds currently at 14/1 or 3/1 for the podium, he’s still most certainly well worth a flutter […]

6. A hasty game of cards or similar.
7. (audio, electronics) The rapid variation of signal parameters, such as amplitude, phase, and frequency.

   Coordinate term: wow

Derived terms

• aflutter
• flutter in the dovecote
• flutterby
• fluttersome
• fluttery

Translations

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