The exploration of underground potholes; caving.
| 单词 | θ235665 |
| 释义 | society > leisure > sport > types of sport or game > potholing and caving > [noun] (8) potholing1899 The exploration of underground potholes; caving. caving1932 The exploring of caves; spelæology. spelunking1946 the practice or hobby of exploring caves. Subcategories:— participant (5) |
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