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Look up Expansion in Wiktionary, the free dictionary.

Expansion may refer to:

• In physics:

• expansion of space,
• thermal expansion,
• expansion fan.

• In computer hardware: an expansion card
• In computer programming: JEE5 developing tool in-line expansion
• In computer gaming:

• an expansion pack

• In mathematics:

• polynomial expansion
• Taylor Expansion
• expansion of a graph
• the converse of a reduct, in model theory or universal algebra.

• An expansion team in sports.
• In medicine, a trinucleotide repeat expansion disorder is the result of expansion during DNA translation.
• An album by Dave Burrell.

• In economics: economic expansion
• In audio engineering: audio level expansion (or squelch)

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