| Term: | Glacial trough |
| Definition: | A large u-shaped valley formed from a v-shaped valley by glacial erosion. |
| Term: | Glacial trough |
| Definition: | A glaciated valley or fjord (q.v.), often characterised by steep sides and a flat bottom, with multiple basins, resulting primarily from erosion by strongly channelled ice. |
| Term: | Glacial trough |
| Definition: | Large area, such as those in the Alps, carved out to depths of hundreds to thousands of meters by the erosive action of glaciers. |
| Term: | Glacial trough |
| Definition: | A deep U-shaped valley with steep valley walls that was formed from glacial erosion. At the base of many of these valleys are cirques. |