From Longman Dictionary of Contemporary Englishspeleologyspe‧le‧ol‧o‧gy /ˌspiːliˈɒlədʒi $ -ˈɑːl-/ noun [uncountable] technical 1 DSODLO British English the sport of walking and climbing in caves SYN spelunking American English2 SGthe scientific study of caves —speleologist noun [countable]
