slow wave

Mrs. Walbridge looked at him, a slow wave of understanding creeping to her brain.

The soft rolling of thunder came from a long way off, like the boom of a slow wave on a distant beach.

There was no moon, but the stars burned steadily overhead, their reflections rising and falling with each slow wave.

Then a slow wave of red crept over his face and crimsoned his ears.

Keith's only answer was a slow wave of the arm in protest toward Norman to keep clear of the contest and leave it to him.