cho·le·li·thi·a·sis \ˌkōlələ̇ˈthīəsə̇s, ˌkä-\noun Etymology: New Latin, from chol- + lithiasis 1.: the production of gallstones < stasis and inflammation usually precede cholelithiasis > 2.: an abnormal state characterized by the presence of gallstones < the obese are particularly subject to cholelithiasis >