an earth-covered ice hill formed by the upward expansion of underground ice
Origin of pingofrom Inupiaq pinguq
nounpl. pin·gos, or pin·goes
An Arctic mound or conical hill, consisting of an outer layer of soil covering a core of solid ice.
Origin of pingoInuit pingu hill, mound
aerial photograph of pingos
near Tuktoyaktuk in
the Northwest Territories,
- (geomorphology) A conical mound with an ice core (that is, a mound of earth-covered ice), particularly if lasting more than a year; caused by permafrost uplift.