This document defines and explains various medical abbreviations and terms: Catherization is when a tube is inserted through the urethra into the urinary bladder to drain urine and can be used to treat certain heart conditions. Cystoscopy uses a cystoscope, a tube with a lens, to view the inside of the bladder. A urinary tract infection or UTI is an infection of the urinary system that is more common in women. A KUB x-ray images the kidneys, ureters, and bladder to check their shape, size, and for any foreign objects. H2O is the common abbreviation for water, which is made of two hydrogen atoms and one oxygen atom joined by covalent