1. large areas of permanent or semi-permanent snow, especially in mountainous regions

Examples

• The climbers crossed several snowfields on their way to the summit.
• Alpine snowfields provide crucial water sources for rivers below.
• The helicopter landed on one of the upper snowfields.
• Snowfields in the Himalayas feed major river systems.
• Scientists study snowfields to understand climate change effects.
• The expedition used GPS to navigate across the vast snowfields.