spe‧lunk‧ing /spəˈlʌŋkɪŋ, spɪˈlʌŋkɪŋ/
noun [uncountable] American English[
Date: 1900-2000;
Language: Latin;
Origin: spelunca 'cave', from Greek spelynx]
the sport of walking and climbing in
caves—spelunker noun [countable] [TahlilGaran] Dictionary of Contemporary English ▲