spe‧le‧ol‧o‧gy /ˌspiːliˈɒlədʒi $ -ˈɑːl-/
noun [uncountable] technical1. British English the sport of walking and climbing in
caves Synonym : spelunking American English2. the scientific study of
caves—speleologist noun [countable] [TahlilGaran] Dictionary of Contemporary English ▲