1. Relating to bile or the transporting of bile.
2. Affecting a bile duct or the system of ducts in the liver.
3. A reference to the gallbladder, bile ducts, or bile.

The biliary system itself consists of the gallbladder and bile ducts and, of course, the bile; for example, biliary atresia is the absence or closure of the major bile ducts, the ducts that drain bile from the liver.

Diarrhea with excessive amounts of bile; biliary diarrhea.

A type of smooth muscle or visceral pain (the internal organs of the body, especially those of the abdomen such as the intestines): Cholecystalgia is specifically associated with the passing of stones through the internal organs of the body, particularly those of the abdomen like the intestines.