from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Pathological formation of mineral concretions in the body.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The process of forming stone-like deposits or calculi formed in an internal organ, such as a gallstone in the gall bladder.

from the GNU version of the Collaborative International Dictionary of English

  • n. The formation of stony concretions or calculi in any part of the body, especially in the bladder and urinary passages.

from The Century Dictionary and Cyclopedia

  • n. In pathology:
  • n. A condition of the body in which uric acid is deposited in the form of stone or gravel in the urinary passages, or in gouty concretions in the tissues.
  • n. In a general sense, the formation of stony deposits of any kind in any part of the body.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the formation of stones (calculi) in an internal organ


From Latin lithiasis, from Ancient Greek λιθίασις ("lithiasis"), from λίθος (lithos, "stone"). (Wiktionary)



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