speleologist

Từ điển Oxford Advanced Learner 8th

spele·olo·gist [speleologist speleologists] BrE [ˌspiːliˈɒlədʒɪst] NAmE [ˌspiːliˈɑːlədʒɪst] noun
a scientist who studies ↑caves or a person who goes into caves as a sport
compare ↑caver, ↑potholer, ↑spelunker
Derived Word: ↑speleology

Word Origin:
late 19th cent.: from French spéléologie, via Latin from Greek spēlaion ‘cave’ + ↑-ist.