A light-colored or white stone or rock, or a geological term for pale-hued rock formations.
From Latin 'albus' (white) + Greek 'lithos' (stone), directly combining roots meaning 'white stone'.
The Greek 'lithos' shows up in dozens of geology terms like 'monolith' and 'lithograph'—it's one of the most productive Greek roots in English scientific vocabulary.
Complete word intelligence in one call. Free tier — 50 lookups/day.