Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess water.

Drainage may also refer to:

• Acid mine drainage
• Drainage basin
• Drainage gallery
• A surgical procedure, see Incision and drainage

Anatomical

• Bile drainage
• Lymphatic drainage
• Pleural drainage
• Tear drainage system

See also

• All pages with titles containing Drainage

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