01 n. A draining; a gradual flowing off of any liquid; also, that which flows out of a drain.
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1.
A draining; a gradual flowing off of any liquid; also, that which flows out of a drain.
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2.
The mode in which the waters of a country pass off by its streams and rivers.
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3.
The system of drains and their operation, by which superfluous water is removed from towns, railway beds, mines, and other works.(Engin.)
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4.
Area or district drained; as, the drainage of the Po, the Thames, etc.
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5.
The act, process, or means of drawing off the pus or fluids from a wound, abscess, etc.(Surg.)
Phrases & compounds
Drainage tube —
a tube introduced into a wound, etc., to draw off the discharges.