Penetration

Penetration may refer to:

Science and technology
 Passage through a partition or wall by a wire, cable, or other electrically conductive object
 Penetration (firestop), an opening in a wall or floor assembly required to have a fire-resistance rating, for the purpose of accommodating the passage of a mechanical, electrical, or structural penetrant
 Penetration (weapons), the ability to pierce the target's armor or other protection
 Penetration depth of light or any electromagnetic radiation in a physical medium
 Penetrating trauma, injury that occurs when an object pierces the skin and enters a tissue of the body
 In roofing, pipes, conduits, and HVAC supports passing through the roof
 An unauthorized act of bypassing access control

Arts and media
 Penetration (artistic), an artistic strategy of placing an artwork within another artist's exhibition, pioneered by Thierry Geoffroy
 Penetration (band), a punk rock band
 "Penetration", a song on Iggy and the Stooges' album Raw Power
 "Penetration", a song on Pedro the Lion's album Control
 "Penetration", a song by The Pyramids
 Body of Lies (film), a film formerly known as Penetration

Other uses
 Penetration (warfare), the breaching of, and moving past, a defensive military line
 Market penetration or brand penetration, the degree to which a product or service is known and/or used
 Sexual penetration, or sexual intercourse
 in some jurisdictions, a criminal charge related to various sexual offences
 In basketball, the ability of a player to drive through the opposition's defense
 In magic, an illusion in which one object appears to pass through another