Spelunking

noun, verb

Definitions

Noun
  1. 1
    The practice or hobby of exploring underground caverns. uncountable, usually

    "In the great myths, the adventures are external, even when they involve such metaphorical spelunkings as the voyage into the underworld."

Verb
  1. 1
    present participle and gerund of spelunk form-of, gerund, participle, present

Etymology

Etymology 1

From spelunk + -ing. Back-formation from spelunker. Attested since 1946.

Etymology 2

From spelunk + -ing. Back-formation from spelunker. Attested since 1946.

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