спелеология znamená v Angličtina

speleology▼(scientific study of caves)
noun
[UK: ˌspiː.lɪ.ˈɒ.lə.dʒi] [US: ˌspiː.lɪ.ˈɒ.lə.dʒi]

spelunking▼(exploring underground caverns)
noun
[UK: spˈelʌŋkɪŋ] [US: spˈelʌŋkɪŋ]