(physics) a movement up and down or back and forth | a movement like that of a sudden occurrence or increase in a specified phenomenon |
wavelike motion; a gentle rising and falling in the manner of waves | a hairdo that creates undulations in the hair |
an undulating curve | the act of signaling by a movement of the hand |
| (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 |