| Term: | Serac |
| Definition: | An isolated block of ice that is formed where the glacier surface is fractured. |
| Term: | Serac |
| Definition: | A tower or block of glacier ice bounded by intersecting crevasses. The term is of French origin. |
| Term: | Serac |
| Definition: | A large block of ice, generally taller than broad, formed by the fracturing of ice. Most commonly found within an icefall, at the edge of an ice cliff, or at the margins of fast- moving ice. |