1. Large expanses of interconnected glacial ice covering mountainous or polar regions, typically several square kilometers in area.
Usage: Usually plural or used as a mass noun; Common in geography and glaciology

Examples

• The icefields of Alaska are retreating due to climate change.
• Hikers can traverse the icefields in the Canadian Rockies during summer months.
• Scientists study icefields to understand historical climate patterns.
• The vast icefields of Greenland contain ancient layers of compressed snow.
• Mountaineers must navigate crevasses when crossing icefields at high altitude.