1. A deep crevasse or gap that forms between a glacier and the rock wall at the head of a glacial valley, typically caused by the glacier pulling away from the mountainside.
Usage: mountaineering and glaciology term; also spelled bergschrund or berg-schrund

Examples

• Climbers had to carefully cross the bergschrund before ascending the glacier.
• The bergschrund widened significantly during the warm summer months.
• A dangerous bergschrund separated the upper snowfield from the rock face.
• The mountaineer used an ice axe to secure a rope across the bergschrund.
• Melting ice at the bergschrund created a hazardous gap for hikers.