Related topics: Other sports, Outdoor, Geography
spe·le·ol·o·gy /ˌspiːliˈɒlədʒi $ -ˈɑːl-/ noun [uncountableU] technical 1. DSODLO British EnglishBrE the sport of walking and climbing in caves 洞穴攀爬运动 SYN American English spelunking
2. SGthe scientific study of caves 洞穴学
—speleologist noun [countableC]