Dictionary
pin•go
Pronunciation: (ping'gō), [key]—
n.,
—pl. -gos.
Geol.
1. a hill of soil-covered ice pushed up by hydrostatic pressure in an area of permafrost.
2. a hill of similar origin remaining after the melting of permafrost.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.