- the act, process, or method of draining
- a system of drains; arrangement of pipes, etc. for carrying off waste matter
- that which is drained off
- a region or area drained, as by a river
See drainage in American Heritage Dictionary 4
- The action or a method of draining.
- A system of drains.
- Something that is drained off.
- Medicine The removal of fluid or purulent material from a wound or body cavity.
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