Definition of lithiasis in US English:

lithiasis

noun

Medicine
  • The formation of stony concretions (calculi) in the body, most often in the gallbladder or urinary system.

    • ‘A 58 year old man with a clinical history of diabetes mellitus and left renal lithiasis presented with a left inguinal mass.’
    • ‘Alkalizing beverages are highly effective in preventing the recurrence of calcium oxalate, uric acid and cystine lithiasis.’
    • ‘Using the helical CT scan as the standard, the authors calculated the sensitivity, specificity, positive and negative predictive values and accuracy of microscopic- or dipstick-positive hematuria with regard to renal lithiasis.’
    • ‘The patient described in this report had every major complication of Caroli disease, including recurrent cholangitis, liver abscess, biliary lithiasis, and cholangiocarcinoma.’

Origin

Mid 17th century: from medieval Latin, based on Greek lithos ‘stone’.

Pronunciation

lithiasis

/ləˈθaɪəsəs//ləˈTHīəsəs/