Drain

n.
  1. The act of draining, or of drawing off; gradual and continuous outflow or withdrawal; as, the drain of specie from a country; the project is a drain on resources.
  2. That means of which anything is drained; a channel; a trench; a water course; a sewer; a sink.
    3. Box drain, Counter drain .
    See under Box, Counter.
    Right of drain (Law),
    an easement or servitude by which one man has a right to convey water in pipes through or over the estate of another.