Path. [mod.L. lithiasis, Gr. λιθίασις, f. λιθιᾶν, f. λίθος stone.] The formation of stony concretions in any part of the body, esp. in the bladder and urinary passages.
1657. Physical Dict., Lithiasis, the disease of the stone, engendered in a mans body.
1727–41. Chambers, Cycl., s.v. Stone, The lithiasis, or the disposition of the kidneys and bladder to generate stones.
1835. G. Gregory, Theory & Pract. Med. (ed. 4), 567. The foundation of our reasonings concerning lithiasis.
1855. Mayne, Expos. Lex., Lithiasis. Name given to a disease of the eyelids, in which small hard tumours grow upon their margins.
1866. A. Flint, Princ. Med. (1880), 906. The discharge from the body of urinary concretions … constitutes lithiasis or gravel.
