Extraction
# Extraction

Extraction may refer to:

## Science and technology

### Biology and medicine

* Comedo extraction, a method of acne treatment
* Dental extraction, the surgical removal of a tooth from the mouth

### Computing and information science

* Data extraction, the process of retrieving data out of data sources
* Information extraction
* Knowledge extraction
* The process of reversing data compression, a.k.a. decompression
* The process of choosing elements from a source document, in linguistics

### Other uses in science and technology

* Root extraction, in mathematics, the computation of a nth root
* Extraction (chemistry), the separation of a substance from a matrix
* Primary extraction, the act of removing a spent cartridge from the chamber of a firearm
* Fragrance extraction, the process of obtaining fragrant oils and compounds from raw materials
* Resource extraction, the process of locating, acquiring and selling any resource
   * Petroleum extraction, the process of recovering petroleum from the ground
* Ancestry or origin of a person

## Arts and entertainment

* Extraction (2015 film), an American thriller film starring Kellan Lutz, Bruce Willis, and Gina Carano
* Extraction (2020 film), an American action film starring Chris Hemsworth
* Extraction (album), by guitarist Greg Howe
* "Extraction" (The Shield), an episode of the television series
* Dead Space: Extraction, a video game prequel to the 2008 game Dead Space
* "Extractions", a song by BS 2000 on the 2001 album Simply Mortified
* Dirty Bomb (video game), formerly known as Extraction
* Tom Clancy's Rainbow Six Extraction, 2022 video game

## Other uses

* Extraction (military), the removal of someone from a hostile area to an area occupied by either friendly personnel or within friendly control
* Literary extract, in which a portion of a written work is published
* A part of the anatomy of a stroke, in rowing
