from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One who explores caves chiefly as a hobby; a caver.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One who explores caves; one who spelunks.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a person who explores caves
From obsolete spelunk, cave, from Middle English, from Old French spelunque, from Latin spēlunca, from Greek spēlunx.(American Heritage® Dictionary of the English Language, Fourth Edition)