noun
- steep, narrow gullies or gorges on a mountainside, especially those filled with snow
Usage: mountaineering; geology
Examples
- The experienced climbers navigated the treacherous couloirs with ice axes and crampons.
- Snow-filled couloirs provide challenging routes for advanced skiers.
- The mountain’s couloirs were carved by centuries of erosion and avalanches.
- Rockfall danger increases in couloirs during warmer weather.
- The guide warned us about the unstable snow conditions in the steep couloirs.
- Alpine climbers often use couloirs as natural highways up mountain faces.