noun -
the motion made by flapping up and down
verb -
wink briefly
noun -
a disorderly outburst or tumult
verb -
move back and forth very rapidly
verb -
beat rapidly
verb -
move along rapidly and lightly; skim or dart
noun -
the act of moving back and forth
noun -
abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart block
verb -
flap the wings rapidly or fly with flapping movements