Water with undulating waves or ripples and two other boats are visible in the background.

Joyful cries washed over us in an undulating wave of emotion.

I looked away and stared at the undulating waves until it passed.

New hands seized the stone, starting yet another undulating wave of murder and war.

But she is spent now with the first undulating wave and I am in no great haste to bring this to its close.

Then Jonnie noticed an undulating wave of sound and a quiver in the wires.

The woman's hair was sleek and seemed to have a life of its own, falling in undulating, liquid black waves along its shoulders.

They crowded around the monitor, looking at the undulating wave and the tiny ripples in the surface.

For initial flow speeds which are not significantly above the critical speed, the transition appears as an undulating wave.

To create an undulating wave, a sinusoid might be desired: