1. a large area of permanent snow, especially in mountainous regions

Examples

• The climbers crossed the vast snowfield before reaching the summit.
• Meltwater from the snowfield feeds the river below.
• The helicopter landed on a flat snowfield near base camp.
• Scientists studied the ancient snowfield to understand climate patterns.
• The snowfield stretched for miles across the high plateau.
• Avalanches often start on steep snowfields above the treeline.