Category:Drainage

Drain"age, n.

1. A draining; a gradual flowing off of any liquid; also, that which flows out of a drain.

2. The mode in which the waters of a country pass off by its streams and rivers.

3. (Engin.)

Defn: The system of drains and their operation, by which superfluous water is removed from towns, railway beds, mines, and other works.

4. Area or district drained; as, the drainage of the Po, the Thames, etc. Latham.

5. (Surg.)

Defn: The act, process, or means of drawing off the pus or fluids from a wound, abscess, etc. Drainage tube (Surg.), a tube introduced into a wound, etc., to draw off the discharges.