hypolithic

[ hahy-puh-lith-ik, hip-uh- ]
/ ˌhaɪ pəˈlɪθ ɪk, ˌhɪp ə- /

adjective

growing beneath rocks.

Origin of hypolithic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019