Expansion

Expansion may refer to:

Arts, entertainment and media

L'Expansion, a French monthly business magazine
Expansion (album), by American jazz pianist Dave Burrell, released in 2004
Expansions (McCoy Tyner album), 1970
Expansions (Lonnie Liston Smith album), 1975
Expansión (Mexico), a Mexican news portal linked to CNN
Expansión (Spanish newspaper), a Spanish economic daily newspaper published in Spain
Expansion pack in gaming, extra content for games, often simply "expansion"

Expansion (geometry), an operation on geometric objects with flat sides
Expansion (model theory), in mathematical logic, a mutual converse of a reduct
Expansion card, in computing, a printed circuit board that can be inserted into an expansion slot
Expansion chamber, on a two-stroke engine, a tuned exhaust system that enhances power output
Expansion joint, an assembly that absorbs heat-induced expansion and contraction of construction materials
Joule–Thomson expansion, the decrease in temperature of a gas when it expands
Thermal expansion, the tendency of matter to change in shape, area, and volume in response to a change in temperature
Expansion of the universe, the increase of the distance between two distant parts of the universe with time.

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