icefall
Học thuậtThân thiện
Definition
- Noun:
- A steep, flowing section of a glacier: An icefall is a section of a glacier where the ice flows over a steep slope or cliff, causing it to fracture and form a chaotic, jumbled area of crevasses and seracs (ice pinnacles). This terrain resembles a frozen waterfall.
Usage Examples
- Noun:
- The climbers faced a dangerous ascent through the treacherous icefall.
- The Khumbu Icefall on Mount Everest is one of the most hazardous sections of the climb.
Advanced Usage
- Descriptive Use: The term is often used descriptively to emphasize danger, instability, or a cascading, frozen appearance.
- Navigating the icefall required immense skill and concentration.
- From a distance, the glacier's icefall looked like a river of ice that had suddenly frozen mid-cascade.
Variants and Related Words
- Glacier (n): A large, persistent body of dense ice that is constantly moving under its own weight.
- Crevasse (n): A deep crack or fissure in a glacier or ice sheet.
- Serac (n): A block or pinnacle of ice formed by intersecting crevasses on a glacier.
Synonyms
- Glacial cascade: A less common synonym emphasizing the waterfall-like quality.
- Ice cascade: Another descriptive term for the same feature.
Related Phrases
- To negotiate an icefall: A common phrase in mountaineering meaning to carefully traverse or climb through an icefall.
- The team spent a full day negotiating the lower icefall.
Noun
- a steep part of a glacier resembling a frozen waterfall