- (n.) The mode in which the waters of a country pass off by its streams and rivers.
- (n.) The system of drains and their operation, by which superfluous water is removed from towns, railway beds, mines, and other works.
- (n.) The act, process or means of drawing off the pus or fluids from a wound, abscess, etc.
- (n.) Area or district drained; as, the drainage of the Po, the Thames, etc.
- (n.) A draining; a gradual flowing off of any liquid; also, that which flows out of a drain.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). drainage. Retrieved September 20, 2026, from http://smartdefine.org/drainage/definitions/2000394 |
| Chicago | Webster's. 2011. "drainage" http://smartdefine.org/drainage/definitions/2000394 (accessed September 20, 2026). |
| Harvard | Webster's 2011, drainage, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/drainage/definitions/2000394>. |
| MLA | Webster's. "drainage" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/drainage/definitions/2000394> |