Bladder: A sac that holds urine in your body

Calculus: Stone

Calyx: Cup-shaped part of the kidney

Hematuria: Blood in urine

Incision: A cut made with a scalpel for surgical purposes

Kidney: Large bean-shaped organ that filters chemicals in your body and produces urine

Lithiasis: Formation of a stone

Nephrolithiasis: The formation of kidney stones

Nephrostomy: Passage of a small tube through the back into the kidney

Pyuria: Pus in urine

Renal: Pertaining to the kidney

Staghorn Stone: Stone that fills up the entire kidney

SWL: Shock Wave Lithotripsy -- used to crush stones with shock waves

Ureter: Narrow tube that carries urine from the kidney to the bladder

Ureterolithiasis: Stones in the ureter

Urinate: To pass the urine from the bladder

Urination: The act of voiding (passing your water)

Urine: Fluid made by the kidney and stored in the bladder