U.S. Relations With El Salvador. More information about El Salvador is available on the El Salvador Page and from other Department of State publications and other sources listed at the end of this fact sheet. u.s.-el salvador relations
lavage. n. 1. (Medicine) med the washing out of a hollow organ by flushing with water.
Medical Definition of Calculus, renal. Calculus, renal: A stone in the kidney (or lower down in the urinary tract). Also called a kidney stone. The stones themselves are called renal caluli. The word calculus (plural: calculi) is the Latin word for pebble. Renal stones are a common cause of blood in the urine and pain in the abdomen, flank, or groin.