lith·ic /ˈlɪθɪk/
  (a.)石的,結石的,膀胱結石的
  Lith·ic a.
  1. Of or pertaining to stone; as, lithic architecture.
  2. Med. Pertaining to the formation of uric-acid concretions (stone) in the bladder and other parts of the body; as, lithic diathesis.
  Lithic acid Old Med. Chem., uric acid. See Uric acid, under Uric.
  Lith·ic, n. Med. A medicine which tends to prevent stone in the bladder.
  Lith·ic, a.  Chem. Pertaining to or denoting lithium or some of its compounds.
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  lithic
       adj 1: of or containing lithium
       2: relating to or composed of stone; "lithic sandstone"