flutter

1. The act of fluttering, or multiple acts thereof; the back-and-forth motion of fluttering; a state of fluttering. (countable, uncountable) · Some turtles use their claw flutter as a means of communication, particularly in mating.
2. The collective flutter of many similar objects. (countable, uncountable) · leaf flutter; feather flutter· The flutter of the flock buffeted me.
3. A flapping, crackling or rustling sound, as from a fluttering motion or any comparable sound; any series of quick repetitive sounds. (countable, uncountable) · I eventually found the source of the flutter, which came from clothes on a clothesline swaying with the wind.· I find the flutter of a campfire to be soothing like a lullaby.
4. A sound that spreads in the manner of a wave or ripple. (countable, figuratively, uncountable) · A flutter of gasps spread over the crowd.
5. The rapid up-and-down movement of the eyelids, and consequently eyelashes, often seen as intentionally flirtatious or alluring and often attributed to the eyes or eyebrows. (countable, uncountable) · He couldn't help but feel more attracted to her with each flutter of her eyes/lashes/eyelids.· Her eyes did a flutter.
6. The movement a hand fan with a back-and-forth action using flicks of the wrist, so as to produce a graceful wave-like effect. (countable, uncountable) · The flutter of the geisha's fan was elegant.
7. The leg motion of various strokes in swimming, especially the flutter kick. (countable, uncountable) · The flutter of your legs will propel you through the water, when you execute a proper flutter kick.
8. The motion or state of falling while fluttering or falling as to produce fluttering. (countable, uncountable) · Winged helicopter seeds fall with rapid flutters to the ground.

Plural flutters