spelaean

[spi-lee-uh n] /spɪˈli ən/
adjective
1.
of, pertaining to, or inhabiting a cave or caves.
Also, spelean.
Origin
1830-40; < Neo-Latin spēlae(us) (adj. derivative of Latin spēlaeum cave < Greek spḗlaion) + -an
British Dictionary definitions for spelaean

spelaean

/spɪˈliːən/
adjective
1.
of, found in, or inhabiting caves: spelaean animals
Word Origin
C19: via New Latin, from Latin spēlaeum a cave, from Greek spēlaion