Dictionary

spelunker

noun spe·lunk·er \spi-ˈləŋ-kər, ˈspē-ˌ\

: a person who explores and studies caves as a hobby

Full Definition of SPELUNKER

:  one who makes a hobby of exploring and studying caves

Origin of SPELUNKER

Latin spelunca cave, from Greek spēlynx; akin to Greek spēlaion cave
First Known Use: 1942

Rhymes with SPELUNKER

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