Perforation (disambiguation)

A perforation is a small hole in a thin material or web. Perforation may also refer to:

• A leaf feature
• Perforation (oil well), a hole punched in the casing or liner of an oil well to connect it to the reservoir
• Perforation gauge, a term used in philately
• Postage stamp perforation, used to separate postage stamps
• Film perforations, the holes placed in the film stock during manufacturing and used for transporting
• Hair perforation test, a laboratory test used to help distinguish the isolates of dermatophytes
• Hydro-slotted perforation, a process in oil and gas drilling
• Organ perforation, a complete penetration of the wall of a hollow organ in the body, including:
  • Corneal perforation
  • Eardrum perforation
  • Esophageal perforation
  • Gastrointestinal perforation
  • Nasal septum perforation
  • Stercoral perforation
  • Uterine perforation