What is the descent of a mass of earth, rock, or snow down a hill or mountain side; as, a land slide, or a snow slide; also, the track of bare rock left by a land slide called?

slide — The descent of a mass of earth, rock, or snow down a hill or mountain side; as, a land slide, or a snow slide; also, the track of bare rock left by a land slide. (Webster's 1913.)

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