flutter
/ˈflʌtə//ˈflʌtɚ/
noun
- 1
The act of fluttering; quick and irregular motion.
“the flutter of a fan”
- 2
A state of agitation.
- 3
An abnormal rapid pulsation of the heart.
- 4
A small bet or risky investment.
- 5
A hasty game of cards or similar.
- 6
(audio) The rapid variation of signal parameters, such as amplitude, phase, and frequency.
verb
- 1
To flap or wave quickly but irregularly.
“flags fluttering in the wind”
- 2
Of a winged animal: to flap the wings without flying; to fly with a light flapping of the wings.
- 3
To cause something to flap.
“A bird flutters its wings.”
- 4
To drive into disorder; to throw into confusion.
- 5
To be in a state of agitation or uncertainty.
- 6
To be frivolous.
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