Lithic

1. a. Pertaining to or denoting lithium or some of its compounds.
2. a. Of or pertaining to stone; as, lithic architecture.
3. a. Pertaining to the formation of uric-acid concretions (stone) in the bladder and other parts of the body; as, lithic diathesis.
4. n. A medicine which tends to prevent stone in the bladder.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.