1.Definition: a disorderly outburst or tumult

Related Noun(s):commotion, disruption, disturbance, kerfuffle

Category: General

2.Definition: abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart block

Category: General

3.Definition: the act of moving back and forth

Related Noun(s):flicker, waver

Category: General

4.Definition: the motion made by flapping up and down

Related Noun(s):flap

Category: General