Reversing data compression, a.k.a. decompression, in computing

Liquid-liquid extraction or solvent extraction, method to separate components of a mixture

Extraction (dental), surgical removal of a tooth from the mouth

Leaching, separating a substance from a solid matrix into a liquid, in chemistry

Extraction (fragrance), obtaining fragrant oils and compounds from odorous raw materials

Part of the anatomy of a stroke, in rowing

Resource extraction, locating, acquiring and selling any resource

"Extractions", song by BS 2000 from the 2001 album Simply Mortified

Data extraction, retrieving data out of data sources

Extraction (military), removal of someone from a hostile area to a secure location

Choosing elements from a source document, in linguistics