Swallow hole (original) (raw)
| Library / English Dictionary |
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| Pronunciation (US): |  |
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I. (noun)
Sense 1
Meaning:
A depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof
Synonyms:
Classified under:
Nouns denoting natural objects (not man-made)
Hypernyms ("swallow hole" is a kind of...):
depression; natural depression (a sunken or depressed geological formation)