Extraction

Extraction may refer to:

Liquid-liquid extraction, a method to separate components of a mixture.
Extraction (dental), the surgical removal of a tooth from the mouth.
Extraction (military), in tactical combat, the removal of someone from a hostile area to a secure location under friendly control.
Extraction, also called decompression, the action of reversing data compression.
Extraction (linguistics), the process of choosing elements from a source document.