lithic
Concise Oxford English Dictionary © 2008 Oxford University Press:
lithic /ˈlɪθɪk/
▶adjective
- 1 chiefly Archaeology & Geology of the nature of or relating to stone.
- 2 Medicine, dated relating to calculi.
– origin C18: from Gk lithikos, from lithos ‘stone’.
'lithic' also found in these Oxford entries:

