definition of
flutter

[1] #1 flutter n. [waver, flicker] the act of moving back and forth. wn

[2] #2 flutter v. [flit, fleet, dart] move along rapidly and lightly; skim or dart; "The hummingbird flitted among the branches". wn

[3] #3 flutter v. [flicker, waver, flitter, quiver] move back and forth very rapidly; "the candle flickered". wn

[4] #4 flutter n. abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart block. wn

[5] #5 flutter n. [disturbance, disruption, commotion, hurly burly, to-do, hoo-ha, hoo-hah, kerfuffle] a disorderly outburst or tumult; "they were amazed by the furious disturbance they had caused". wn