spelaeologist

/ˌspiːliˈɑːlədʒɪst/
noun
  1. A person who studies or explores caves as a scientist or hobbyist.
    • The team of spelaeologists collected samples of rare cave minerals.
    • As a spelaeologist, she spends most weekends crawling through underground tunnels.
    • The spelaeologist carefully mapped the newly discovered cave system.
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