1. The scientific study of caves.
2. Exploration of caves.
[French spéléologie : Latin spēlaeum, spēlēum, cave (from Greek spēlaion) + -logie, -logy.]
spe′le·o·logi·cal (-ə-lŏjĭ-kəl) adj.
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Indo-European & Semitic Roots Appendices
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