Drain
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Drain can refer to:
- A tube used to remove pus or other fluids from a wound. See drain (surgery)
- agriculture, see drainage
- A exit-point for soiled water in a plumbing system (e.g., on the floor of a bathroom, or at the bottom of a sink or bathtub).
- A system of collecting and disposing of rainwater in an urban area. See storm drain.
- Drain, a commune in the Maine-et-Loire département in France
- A colloquial term for the Underground's Waterloo & City Line in London