| 单词 | flutter |
| 释义 | flutter v. & n. --v 1. a intr. flap the wings in flying or trying to fly (butterflies fluttered in the sunshine). b tr. flap (the wings). 2. intr. fall with a quivering motion (leaves fluttered to the ground). 3. intr. & tr. move or cause to move irregularly or tremblingly (the wind fluttered the flag). 4. intr. go about restlessly; flit; hover. 5. tr. agitate, confuse. 6. intr. (of a pulse or heartbeat) beat feebly or irregularly. 7. intr. tremble with excitement or agitation. --n 1. a the act of fluttering. b an instance of this. 2. tremulous excitement; a sensation (was in a flutter; caused a flutter with his behaviour). 3. Brit. sl. a small bet, esp. on a horse. 4. an abnormally rapid but regular heartbeat. 5. Aeron. an undesired oscillation in a part of an aircraft etc. under stress. 6. Mus. a rapid movement of the tongue (as when rolling one's rs) in playing a wind instrument. 7. Electronics a rapid variation of pitch, esp. of recorded sound (cf. WOW(2)). 8. a vibration. Phrases and idioms flutter the dovecots cause alarm among normally imperturbable people. Derivatives flutterer n. fluttery adj. Etymology: OE floterian, flotorian, frequent. form rel. to FLEET(5) |
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