1. The motion made by flapping up and down
   - flap, flapping, flutter

1. Move along rapidly and lightly; skim or dart
   - flit, fleet, dart 
2. Move back and forth very rapidly
   - flicker, waver, flitter, quiver 
3. Flap the wings rapidly or fly with flapping movements
   "The seagulls fluttered overhead" 
4. Beat rapidly
   - palpitate 
5. Wink briefly
   - bat

Derived forms: flutterings

Type of: beat, blink, flap, hurry, move back and forth, nictate, nictitate, pound, speed, thump, travel rapidly, undulation, wave, wink, zip

Encyclopedia: Flutter

• interdict
• interdiction
• interdiction fire
• interdigitate
• interdisciplinary
• interest
• interest expense
• interest group
• interest rate
• interest-bearing
• interested
• interestedness
• interesting
• interestingly
• interestingness
• interface
• interfacial
• interfacial surface tension
• interfacial tension
• interfaith
• interfere
• interference
• interference fringe
• interfering
• interferometer