Cholecyst: The gallbladder. The word cholecyst is not much used today but it figures into a number of other terms to do with the gallbladder Cholecystectomy is removal of the gallbladder. Cholecystitis is inflammation of the gallbladder. Cholecystogram is an x-ray of the gallbladder.

Cholecyst, literally, means, bilebladder. It comes from chol, referring to bile + cyst, a bladder.