rock glacier
noun
a mass of rock resembling a valley glacier that moves or is moved down a slope by its own weight or by the action of frost and interstitial ice.
Origin of rock glacier
First recorded in 1900–05
Words nearby rock glacier
rock fence,
rock fever,
rock flour,
rock flower,
rock garden,
rock glacier,
rock gunnel,
rock hill,
rock hind,
rock hound,
rock hounding