a movement like that of a sudden occurrence or increase in a specified phenomenon | the quality of being unsteady and subject to changes |
a hairdo that creates undulations in the hair | an instance of change; the rate or magnitude of change |
the act of signaling by a movement of the hand | a wave motion |
(physics) a movement up and down or back and forth | |
one of a series of ridges that moves across the surface of a liquid (especially across a large body of water) | |
something that rises rapidly | |
a persistent and widespread unusual weather condition (especially of unusual temperatures) | |
an undulating curve | |