| 释义 |
flutter
flut·ter F0209600 (flŭt′ər)v. flut·tered, flut·ter·ing, flut·ters v.intr.1. To wave or flap rapidly in an irregular manner: curtains that fluttered in the breeze.2. a. To fly by a quick light flapping of the wings.b. To flap the wings without flying.3. To move or fall in a manner suggestive of tremulous flight: "Her arms rose, fell, and fluttered with the rhythm of the song" (Evelyn Waugh).4. To vibrate or beat rapidly or erratically: My heart fluttered wildly.5. To move quickly in a nervous, restless, or excited fashion; flit.v.tr. To cause to flutter: "fluttering her bristly black lashes as swiftly as butterflies' wings" (Margaret Mitchell).n.1. The act of fluttering.2. A condition of nervous excitement or agitation: Everyone was in a flutter over the news that the director was resigning.3. A commotion; a stir.4. Medicine Abnormally rapid pulsation, especially of the atria or ventricles of the heart.5. Rapid fluctuation in the pitch of a sound reproduction resulting from variations in the speed of the recording or reproducing equipment.6. Chiefly British A small bet; a gamble: "If they like a flutter, Rick will get them better odds than the bookies" (John le Carré).
[Middle English floteren, from Old English floterian; see pleu- in Indo-European roots.]
flut′ter·er n.flut′ter·y adj.flutter (ˈflʌtə) vb1. to wave or cause to wave rapidly; flap2. (Zoology) (intr) (of birds, butterflies, etc) to flap the wings3. (intr) to move, esp downwards, with an irregular motion4. (Pathology) (intr) pathol (of the auricles of the heart) to beat abnormally rapidly, esp in a regular rhythm5. to be or make nervous or restless6. (intr) to move about restlessly7. (Swimming, Water Sports & Surfing) swimming to cause (the legs) to move up and down in a flutter kick or (of the legs) to move in this way8. (tr) informal Brit to wager or gamble (a small amount of money)n9. a quick flapping or vibrating motion10. a state of nervous excitement or confusion11. excited interest; sensation; stir12. informal Brit a modest bet or wager13. (Pathology) pathol an abnormally rapid beating of the auricles of the heart (200 to 400 beats per minute), esp in a regular rhythm, sometimes resulting in heart block14. (Electronics) electronics a slow variation in pitch in a sound-reproducing system, similar to wow but occurring at higher frequencies15. (Aeronautics) a potentially dangerous oscillation of an aircraft, or part of an aircraft, caused by the interaction of aerodynamic forces, structural elastic reactions, and inertia16. (Swimming, Water Sports & Surfing) swimming See flutter kick17. (Music, other) music Also called: flutter tonguing a method of sounding a wind instrument, esp the flute, with a rolling movement of the tongue[Old English floterian to float to and fro; related to German flattern; see float] ˈflutterer n ˈflutteringly advflut•ter (ˈflʌt ər)
v.i. 1. to wave or flap about: Banners fluttered in the breeze. 2. to flap the wings rapidly or fly with flapping movements. 3. to move in quick, irregular motions; vibrate. 4. to beat rapidly, as the heart. 5. to be tremulous or agitated. 6. to go with irregular motions or aimless course. v.t. 7. to cause to flutter. 8. to throw into nervous or tremulous excitement or agitation. n. 9. a fluttering movement. 10. a state of nervous excitement or mental agitation: a flutter of anticipation. 11. a stir; flurry. 12. a variation in pitch resulting from rapid fluctuations in the speed of a sound recording. Compare wow 2. 13. Chiefly Brit. a small wager or speculative investment. [before 1000; Middle English floteren, Old English floterian, frequentative of flotian to float] flut′ter•er, n. flut′ter•ing•ly, adv. flut′ter•y, adj. Flutter of cardiologists—Mensa.flutter
Past participle: fluttered
Gerund: fluttering
| Present |
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| I flutter | | you flutter | | he/she/it flutters | | we flutter | | you flutter | | they flutter |
| Preterite |
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| I fluttered | | you fluttered | | he/she/it fluttered | | we fluttered | | you fluttered | | they fluttered |
| Present Continuous |
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| I am fluttering | | you are fluttering | | he/she/it is fluttering | | we are fluttering | | you are fluttering | | they are fluttering |
| Present Perfect |
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| I have fluttered | | you have fluttered | | he/she/it has fluttered | | we have fluttered | | you have fluttered | | they have fluttered |
| Past Continuous |
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| I was fluttering | | you were fluttering | | he/she/it was fluttering | | we were fluttering | | you were fluttering | | they were fluttering |
| Past Perfect |
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| I had fluttered | | you had fluttered | | he/she/it had fluttered | | we had fluttered | | you had fluttered | | they had fluttered |
| Future |
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| I will flutter | | you will flutter | | he/she/it will flutter | | we will flutter | | you will flutter | | they will flutter |
| Future Perfect |
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| I will have fluttered | | you will have fluttered | | he/she/it will have fluttered | | we will have fluttered | | you will have fluttered | | they will have fluttered |
| Future Continuous |
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| I will be fluttering | | you will be fluttering | | he/she/it will be fluttering | | we will be fluttering | | you will be fluttering | | they will be fluttering |
| Present Perfect Continuous |
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| I have been fluttering | | you have been fluttering | | he/she/it has been fluttering | | we have been fluttering | | you have been fluttering | | they have been fluttering |
| Future Perfect Continuous |
|---|
| I will have been fluttering | | you will have been fluttering | | he/she/it will have been fluttering | | we will have been fluttering | | you will have been fluttering | | they will have been fluttering |
| Past Perfect Continuous |
|---|
| I had been fluttering | | you had been fluttering | | he/she/it had been fluttering | | we had been fluttering | | you had been fluttering | | they had been fluttering |
| Conditional |
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| I would flutter | | you would flutter | | he/she/it would flutter | | we would flutter | | you would flutter | | they would flutter |
| Past Conditional |
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| I would have fluttered | | you would have fluttered | | he/she/it would have fluttered | | we would have fluttered | | you would have fluttered | | they would have fluttered |
Thesaurus| Noun | 1. |  flutter - the act of moving back and forth flicker, wavermovement, motility, motion, move - a change of position that does not entail a change of location; "the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility" | | 2. | flutter - abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart blockarrhythmia, cardiac arrhythmia - an abnormal rate of muscle contractions in the heart | | 3. | flutter - a disorderly outburst or tumult; "they were amazed by the furious disturbance they had caused"hoo-ha, hoo-hah, hurly burly, kerfuffle, to-do, commotion, disruption, disturbancedisorder - a disturbance of the peace or of public orderturmoil, upheaval, convulsion - a violent disturbance; "the convulsions of the stock market"earthquake - a disturbance that is extremely disruptive; "selling the company caused an earthquake among the employees"incident - a public disturbance; "the police investigated an incident at the bus station"stir, splash - a prominent or sensational but short-lived news event; "he made a great splash and then disappeared"tempest, storm - a violent commotion or disturbance; "the storms that had characterized their relationship had died away"; "it was only a tempest in a teapot"storm center, storm centre - a center of trouble or disturbancegarboil, tumult, tumultuousness, uproar - a state of commotion and noise and confusion | | 4. |  flutter - the motion made by flapping up and downflapping, fluttering, flapundulation, wave - (physics) a movement up and down or back and forth | | Verb | 1. | flutter - move along rapidly and lightly; skim or dart; "The hummingbird flitted among the branches"dart, fleet, flitbutterfly - flutter like a butterflyhurry, travel rapidly, zip, speed - move very fast; "The runner zipped past us at breakneck speed" | | 2. | flutter - move back and forth very rapidly; "the candle flickered"flicker, flitter, quiver, wavermove back and forth - move in one direction and then into the opposite direction | | 3. | flutter - flap the wings rapidly or fly with flapping movements; "The seagulls fluttered overhead"flap, beat - move with a thrashing motion; "The bird flapped its wings"; "The eagle beat its wings and soared high into the sky" | | 4. | flutter - beat rapidly; "His heart palpitated"palpitatethump, beat, pound - move rhythmically; "Her heart was beating fast"palpitate - cause to throb or beat rapidly; "Her violent feelings palpitated the young woman's heart" | | 5. | flutter - wink briefly; "bat one's eyelids"batblink, nictate, nictitate, wink - briefly shut the eyes; "The TV announcer never seems to blink" |
flutterverb1. beat, bat, flap, tremble, shiver, flicker, ripple, waver, fluctuate, agitate, ruffle, quiver, vibrate, palpitate a butterfly fluttering its wings2. flit, hover, flitter The birds were fluttering among the trees.3. flap, fly, wave, shake, swish It was silent except for the flags fluttering in the background.noun1. bet, gamble, punt (chiefly Brit.), wager I had a flutter on five horses.2. tremor, tremble, shiver, shudder, palpitation She felt a flutter of trepidation in her stomach.3. vibration, flapping, twitching, quiver, quivering loud twittering and a desperate flutter of wings4. agitation, state (informal), confusion, excitement, flap (informal), tremble, flurry, dither (chiefly Brit.), commotion, fluster, tumult, perturbation, state of nervous excitement She was in a flutter.flutterverb1. To move or cause to move about while being fixed at one edge:flap, fly, wave.2. To move through the air with or as if with wings:flap, flit, flitter, fly, sail, wing.3. To move quickly, lightly, and irregularly like a bird in flight:flicker, flit, flitter, hover.4. To move (one's arms or wings, for example) up and down:beat, flap, flitter, flop, waggle, wave.nounA state of discomposure:agitation, dither, fluster, perturbation, tumult, turmoil, upset.Informal: lather, stew.Translationsflutter (ˈflatə) verb1. to (cause to) move quickly. A leaf fluttered to the ground. 飄落，使飄動 飘落2. (of a bird, insect etc) to move the wings rapidly and lightly. The moth fluttered round the light. 拍翅 拍翅 noun1. a quick irregular movement (of a pulse etc). She felt a flutter in her chest. 不規則地跳動(如脈搏) 不规则跳动2. nervous excitement. She was in a great flutter. 坐立不安 坐立不安flutter
a flutter in the dovecoteA stir or mild disturbance among a certain organization or group of people, especially one that is typically quiet, reserved, or conservative in nature. Likened to domestic pigeons fluttering their wings in response to an agitation (a dovecote being a structure built to house and raise them). The unexpected entrance of an exuberant young woman caused a bit of a flutter in the dovecote at the old Men's Only club.See also: dovecote, flutterflutter the dovecoteTo cause a stir or mild disturbance among a certain organization or group of people, especially one that is typically quiet, reserved, or conservative in nature. Likened to domestic pigeons fluttering their wings in response to an agitation (a dovecote being a structure built to house and raise them). The exuberant young woman fluttered the dovecote of the old Men's Only club by bursting in unannounced.See also: dovecote, flutterin a flutterIn a nervous, confused, or agitated state. We were all in a flutter waiting to meet the President at our school rally. The economy is still in a flutter after news that the country's largest corporation has filed for bankruptcy.See also: flutterflutter (one's) eyelashesTo flirt with or feign romantic interest in someone. (Literally fluttering one's eyelashes is an exaggerated way of doing so.) Usually but not exclusively refers to women. She kept fluttering her eyelashes at me each time I talked to her, so I'm thinking of asking her out on a date. I like to flutter my eyelashes at bartenders to see if I can get a drink or two for free.See also: eyelash, flutterin a ditherIn a nervous, confused, or agitated state. We were in a dither waiting to meet the president at our school rally. The economy is still in a dither after news that the country's largest corporation has filed for bankruptcy.See also: ditherflutter about1. Literally, to fly around some thing or place in a quick, deft manner. The kids are outside, trying to catch the lightning bugs that are fluttering about.2. By extension, to move quickly around some place or area. I think Anita is fluttering about the office, straightening up. Good luck finding her.See also: flutterflutter downTo fall or move slowly or gently downward through the air. The papers slipped out of my hand and fluttered down to the ground.See also: down, flutterflutter over (someone or something)To move through the air above someone or something. A butterfly fluttered over us and then landed in the plants.See also: flutter, overflutter about and flutter around 1. Lit. to fly about with quick, flapping motions of the wings. The moths fluttered about aimlessly. A few birds fluttered around. 2. Fig. [for someone] to move about quickly and busily. Aunt Margaret fluttered about, picking up after everyone. Stop fluttering around and sit down!See also: flutterflutter about something and flutter around something 1. Lit. to fly around something or some place. The moths were fluttering about the lightbulb. The butterflies fluttered around the bright flowers. 2. Fig. to keep moving busily within a particular place. The maid fluttered about the house, dusting and arranging. She fluttered around the house from room to room.See also: flutterflutter down[for flying or falling things] to flap or float downward. The butterflies fluttered down onto the flowers. The leaves fluttered down from the trees when the breeze blew.See also: down, flutterflutter over someone or somethingto fly or flap above someone or something. (Also said of a person being fussy about someone or something.) The little moths fluttered over us while we were in the garden. The birds flutter over the fountain, eager for a bath.See also: flutter, overin a ditherconfused; nervous; bothered. Mary is sort of in a dither lately. Don't get yourself in a dither.See also: ditherin a ditherAlso, all of a dither; in a flutter or tizzy . In a state of tremulous agitation, as in Planning the wedding put her in a dither, or He tried to pull himself together, but he was all of a dither, or She showed up in such a flutter that our meeting was useless. The noun dither dates from the early 1800s and goes back to the Middle English verb didderen, "to tremble"; in a flutter dates from the mid-1700s; in a tizzy dates from about 1930 and is of uncertain origin. See also: ditherflutter the dovecotes alarm, startle, or upset a sedate or conventionally minded community. This expression may come from Shakespeare's Coriolanus: ‘like an eagle in a dove-cote, I Fluttered your Volscians in Corioli’. Compare with put the cat among the pigeons (at cat). 1992 Daily Telegraph It is however the arrival of Michael Heseltine at the DTI that will flutter the dovecotes most of all. See also: dovecote, flutterflutter your eyelashes open and close your eyes rapidly in a coyly flirtatiousmanner.See also: eyelash, flutterin a dither mod. confused; undecided. Don’t get yourself in a dither. See also: ditherflutter
flutter1. Pathol an abnormally rapid beating of the auricles of the heart (200 to 400 beats per minute), esp in a regular rhythm, sometimes resulting in heart block 2. Electronics a slow variation in pitch in a sound-reproducing system, similar to wow but occurring at higher frequencies 3. Aeronautics a potentially dangerous oscillation of an aircraft, or part of an aircraft, caused by the interaction of aerodynamic forces, structural elastic reactions, and inertia 4. Music a method of sounding a wind instrument, esp the flute, with a rolling movement of the tongue Flutter in aeroelasticity, self-excited oscillations of parts of an aircraft, mainly the wing and the tail, that occur when the critical flutter speed is reached. Flutter may result in structural failure. Flutter is associated with the relative location of the center of gravity and the center of twist of the wing or tail and with other characteristics of a given aircraft. flutter[′fləd·ər] (acoustics) Distortion that occurs in sound reproduction as a result of undesired speed variations during the recording, duplicating, or reproducing process. (electromagnetism) A fast-changing variation in received signal strength, such as may be caused by antenna movements in a high wind or interaction with a signal or another frequency. (engineering) The irregular alternating motion of the parts of a relief valve due to the application of pressure where no contact is made between the valve disk and the seat. (fluid mechanics) aeronautical flutter (medicine) Rapid, regular contraction of the atrial muscle of the heart. Flutter (aeronautics) An aeroelastic self-excited vibration with a sustained or divergent amplitude, which occurs when a structure is placed in a flow of sufficiently high velocity. Flutter is an instability that can be extremely violent. At low speeds, in the presence of an airstream, the vibration modes of an aircraft are stable; that is, if the aircraft is disturbed, the ensuing motion will be damped. At higher speeds, the effect of the airstream is to couple two or more vibration modes such that the vibrating structure will extract energy from the airstream. The coupled vibration modes will remain stable as long as the extracted energy is dissipated by the internal damping or friction of the structure. However, a critical speed is reached when the extracted energy equals the amount of energy that the structure is capable of dissipating, and a neutrally stable vibration will persist. This is called the flutter speed. At a higher speed, the vibration amplitude will diverge, and a structural failure will result. See Aeroelasticity Aircraft manufacturers now have engineering departments whose primary responsibility is fluffer safety. Modern flutter analyses involve extensive computations, requiring the use of large-capacity, high-speed digital computers. Flutter engineers contribute to the design by recommending stiffness levels for the structural components and control surface actuation systems and weight distributions on the lifting surfaces, so that the aircraft vibration characteristics will not lead to flutter within the design speeds and altitudes. See Airframe, Wing flutter The wing twist as it flaps up and down. This up and down motion causes changes in the angle of attack. The changes in angle of attack mean that the aerodynamic forces are always tending to help the motion, which do not, therefore, damp out, resulting in flutter.A vibration caused by the combined effects of the changes in pressure distribution over the surface of airfoils as the angle of attack is altered and the elastic forces set up by the distortion of the structure itself. In the worst cases, there may be a total loss of control and a consequent crash. The flutter may affect the control surfaces such as an aileron, or the main planes, or both. The flutter can be avoided by using mass balances, increasing structural rigidity, and having irreversible controls. Flutter also occurs with propellers, compressor blades, and turbine blades. Flutter is an aeroelastic self-excited vibration in which the external source of energy is the airstream. It depends on the elastic, inertial, and dissipative forces of the system in addition to the aerodynamic forces.flutter
flutter [flut´er] a rapid vibration or pulsation.atrial flutter a cardiac arrhythmia in which the atrial contractions are rapid (230–380 per minute), but regular. Two types, I and II, are distinguished according to rate; Type I is also more amenable to cardioversion. In Type I the atrial rate is usually 290 to 310 per minute but can range from 230 to 350. In Type II the atrial rate is usually 360 to 380 per minute but can range from 340 to 430.diaphragmatic flutter peculiar wavelike fibrillations of the diaphragm of unknown cause.impure flutter atrial flutter in which the atrial rhythm is irregular.mediastinal flutter see mediastinal flutter.pure flutter atrial flutter in which the atrial rhythm is regular.ventricular flutter a possible transition stage between ventricular tachycardia and ventricular fibrillation, the electrocardiogram showing rapid, uniform, and virtually regular oscillations, 250 or more per minute.flut·ter (flŭt'ĕr), Agitation; tremulousness. [A.S. floterian, to float about] flutter (flŭt′ər)n. Abnormally rapid pulsation, especially of the atria or ventricles of the heart.A family of cardiac tachyarrhythmias characterised by rapid regular atrial (250-350/min) or ventricular (200/min) rhythmsflutter Cardiology A family of cardiac tachyarrhythmias characterized by rapid regular atrial–250-350/min or ventricular–200/min rhythms. See Atrial flutter, Ventricular flutter. Cf Fibrillation. Flutter types Atrial flutter occurs at 200-350 beats/min (with a 2:1 block, so that the ventricle fires at ± 150 beats/min); AF results from a circus pathway, occurs in atrial dilatation, primary myocardial disease, or rheumatic heart disease and responds poorly to antiarrhythmics Ventricular flutter is characterized by a continuous and regular depolarization rate of greater than 200 beats/min, and demonstrates high-amplitude zigzag pattern on the EKG, without clear definition of the QRS and T waves, a pattern that may revert spontaneously to a normal sinus rhythm or progress to ventricular fibrillation flut·ter (flŭt'ĕr) Agitation; tremulousness. [A.S. floterian, to float about]flut·ter (flŭt'ĕr) Agitation; tremulousness. [A.S.floterian, to float about]FinancialSeeAFflutter
Related to flutter: atrial flutter, flutter deviceSynonyms for flutterverb beatSynonyms- beat
- bat
- flap
- tremble
- shiver
- flicker
- ripple
- waver
- fluctuate
- agitate
- ruffle
- quiver
- vibrate
- palpitate
verb flitSynonymsverb flapSynonymsnoun betSynonymsnoun tremorSynonyms- tremor
- tremble
- shiver
- shudder
- palpitation
noun vibrationSynonyms- vibration
- flapping
- twitching
- quiver
- quivering
noun agitationSynonyms- agitation
- state
- confusion
- excitement
- flap
- tremble
- flurry
- dither
- commotion
- fluster
- tumult
- perturbation
- state of nervous excitement
Synonyms for flutterverb to move or cause to move about while being fixed at one edgeSynonymsverb to move through the air with or as if with wingsSynonyms- flap
- flit
- flitter
- fly
- sail
- wing
verb to move quickly, lightly, and irregularly like a bird in flightSynonymsverb to move (one's arms or wings, for example) up and downSynonyms- beat
- flap
- flitter
- flop
- waggle
- wave
noun a state of discomposureSynonyms- agitation
- dither
- fluster
- perturbation
- tumult
- turmoil
- upset
- lather
- stew
Synonyms for flutternoun the act of moving back and forthSynonymsRelated Words- movement
- motility
- motion
- move
noun abnormally rapid beating of the auricles of the heart (especially in a regular rhythm)Related Words- arrhythmia
- cardiac arrhythmia
noun a disorderly outburst or tumultSynonyms- hoo-ha
- hoo-hah
- hurly burly
- kerfuffle
- to-do
- commotion
- disruption
- disturbance
Related Words- disorder
- turmoil
- upheaval
- convulsion
- earthquake
- incident
- stir
- splash
- tempest
- storm
- storm center
- storm centre
- garboil
- tumult
- tumultuousness
- uproar
noun the motion made by flapping up and downSynonymsRelated Wordsverb move along rapidly and lightlySynonymsRelated Words- butterfly
- hurry
- travel rapidly
- zip
- speed
verb move back and forth very rapidlySynonyms- flicker
- flitter
- quiver
- waver
Related Wordsverb flap the wings rapidly or fly with flapping movementsRelated Wordsverb beat rapidlySynonymsRelated Wordsverb wink brieflySynonymsRelated Words- blink
- nictate
- nictitate
- wink
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