[li.thi.a.sis] n, pl -a.ses [NL, fr. Gk, fr. lithos] (ca. 1657): the formation of stony concretions in the body (as in the gallbladder)
LITHIASIS
Meaning of LITHIASIS in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012