noun
- a steep, narrow gully or gorge on a mountainside, especially one filled with snow
Usage: mountaineering
Examples
- The climbers carefully descended the icy couloir.
- Avalanches frequently occur in this narrow couloir.
- The couloir was too steep and dangerous for inexperienced hikers.
- Fresh snow had filled the couloir overnight.
- They used ice axes to navigate the treacherous couloir.
- The mountain guide warned about rockfall in the couloir.