pingo
nounAn Arctic mound or conical hill, consisting of an outer layer of soil covering a core of solid ice.
nounA conical mound with an ice core (that is, a mound of earth-covered ice), particularly if lasting more than a year; caused by
An Arctic mound or conical hill, consisting of an outer layer of soil covering a core of solid ice.
nounA conical mound with an ice core (that is, a mound of earth-covered ice), particularly if lasting more than a year; caused by
