n.
Function: 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