Wiktionary
ground swells
n. (ground swell English)
Usage examples of "ground swells".
Every wave was whitecapped, and the great hills of the ground swells were obscured by foam flying off the crests and rolling in the troughs.
There'd been no seismic disturbances, not tsunamis, no ground swells shifting the sands.
The wind had shifted to the northeast and the ground swells were building in the inlet.
Sometimes the quiet observations he made were like the ground swells of a strong, deeply hidden feeling.
It was feeding back mass shape, indistinct lumps, ground swells, anything.
You try to splash down parallel to the ground swells and ride it out.