Flutter



GRE Barron

解释

GRE 红宝书

• v. 拍翅
• ［英］ v. 拍翅 ( of the wings move lightly and quickly)
• ［例］ The wings of the bird still fluttered after it had been shot down.

Webster Collegiate

I. verb

• Etymology: Middle English floteren to float, flutter, from Old English floterian, frequentative of flotian to float; akin to Old English flēotan to float — more at fleet
• Date: before 12th century
• intransitive verb
  • 1. to flap the wings rapidly
  • 2.
    • a. to move with quick wavering or flapping motions
    • b. to vibrate in irregular spasms
  • 3. to move about or behave in an agitated aimless manner
• transitive verb
  • to cause to flutter
• ? flutterer noun
• ? fluttery adjective

II. noun

• Date: 1641
• 1. an act of fluttering
• 2.
  • a. a state of nervous confusion or excitement
  • b. flurry, commotion
  • c. abnormal spasmodic fluttering of a body part <treatment of atrial flutter>
• 3.
  • a. a distortion in reproduced sound similar to but of a higher pitch than wow
  • b. fluctuation in the brightness of a television image
• 4. an unwanted oscillation (as of an aileron or a bridge) set up by natural forces
• 5. chiefly British a small speculative venture or gamble

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