1. a large expanse of interconnected glacial ice covering a mountainous region
Usage: geography; glaciology

Examples

• The Patagonian icefield is one of the largest ice masses outside the polar regions.
• Hikers traversed the vast icefield in the Canadian Rockies during summer.
• Climate change has caused the icefield to retreat significantly over the past decade.
• The icefield feeds several valley glaciers that descend into the lowlands.
• Scientists study the icefield to understand long-term patterns of glacial erosion.