 natural_depression |
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| 1. | [ noun ] (geography) a sunken or depressed geological formation | |
| Synonyms: | depression | |
| Related terms: | natural_elevation geological_formation valley trough hole bed lowland gully crater basin trench sinkhole | |
| Similar spelling: |
natural_process natural_science natural_scientist natural_resources natural_elevation natural_selection natural_resource |
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