Definitions for "Icefall"
A frozen waterfall, or mass of ice resembling a frozen waterfall.
Part of a glacier where the ice flows over a bed with a very steep gradient, typically at a higher rate than both above and below. As a result the surface is fractured and heavily crevassed. In a river system, this would be a waterfall. Northwest-looking photograph of the Vaughn Lewis Icefall, a steep, 1,500 foot bedrock cliff over which the Vaughn Lewis Glacier descends from the upper Juneau Icefield, Tongass National Forest, Alaska.
A cascade of ice that results when a glacier descends over a changing slope of ground beneath.