WordNet
glacial boulder
n. a boulder that has been carried by a glacier to a place far distant from its place of origin
Usage examples of "glacial boulder".
The cashier had advised Gamay to park at a clearing near a big glacial boulder and to walk through the woods.
And before long their evening meal was in course of preparation, close by a great glacial boulder at the edge of the sand-barren.
A big glacial boulder moved past, tossing like a cork on a stream, right over the place where he had been pinned.