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expansion

From Wiktionary, the free dictionary
See also:Expansionandexpansión

English

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Etymology

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Borrowed fromFrenchexpansion, fromLatinexpānsiō. Bysurface analysis,expand +‎-sion.

Pronunciation

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  • IPA(key): /ɪkˈspænʃən/
  • Audio(US):(file)
  • Hyphenation:ex‧pan‧sion

Noun

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expansion (countable anduncountable,pluralexpansions)

  2. An act, process, or instance ofexpanding.
    Theexpansion of metals and plastics in response to heat is well understood.
    • 2015, Heidi Nast, “Pit Bulls, Slavery, and Whiteness in the Mid- to Late-Nineteenth-Century U.S.”, in Rosemary-Claire Collard, Kathryn Gillespie, editors,Critical Animal Geographies, page138:
      […] 1919, a time when African American hopes for a just future following their service in World War I were dashed by violent reassertions of white supremacy, including the efflorescence andexpansion of the KKK into the Midwestern and northwestern U.S.
    2. The fractional change in unit length per unit length per unit temperature change.
      Synonym:coefficient of thermal expansion
      Hypernym:temperature coefficient
      Look up theexpansion of 1018 steel at stick welding temps and figure out how far this thing's gonna bend once we weld it up.
    4. (building) A newaddition.
      Synonym:annex
      My new office is in theexpansion behind the main building.
    6. A product to be used with a previous product.
      Thisexpansion requires the original game board.
    8. That which is expanded; expanse; extended surface.
      • a.1804,James Beattie, “The Beginning of theFirst Book ofLucretius”, inThe Poetical Works of James Beattie (The Aldine Edition of the British Poets), London: Bell and Daldy […], published1866,→OCLC,pages170–171:
        Mother of mighty Rome's imperial line, / Delight of man, and of the powers divine, /Venus, all-bounteous queen! whose genial power / Diffuses beauty in unbounded store / Through seas, and fertile plains, and all that lies / Beneath the starredexpansion of the skies.
    10. (steam engines) The operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston.
    12. The replacement of ashort name (e.g.,acronym,initialism, alphanumericsymbol,abbreviation) with thelonger name that issynonymous with it, as whenspelling out acronyms to ensure clarity for a general audience.
      Expansion of acronyms is often helpful for nonexpert readers (anacronyms excluded).
      1. The string of text thus substituted.
        The acronym "FNDs" can mean either "functional neurologic disorders" or "focal neurologic deficits", so you'd better use theexpansion instead of the acronym, for clarity in this context; readers of this paragraph may not have read, or remember, which definition you used 40 pages earlier.
    13. (video games)Ellipsis ofexpansion pack.
    14. (economics) An increase in the market value of an economy over time.
      • 1971, National Industrial Conference Board,The Conference Board Record - Volume 8, page 4:
        Secondly, the cyclicalexpansion now taking shape in the United States is starting from a relatively high level; it has much less headroom than earlierexpansions that began from a deeply deflated recession base.
      • 1978, Fred Caloren, Michel Chossudovsky, Paul Gingrich,Is the Canadian Economy Closing Down?, Black Rose Books Ltd.,→ISBN, page88:
        In addition, new technologies are adopted which are less labour-using, thus unemploying workers. Over the postwar years, factors of this sort have contributed to a gradual upward drift in unemployment rates, even duringexpansions.
    15. (geometry) Stretching of geometric objects with flat sides.
    16. (algebra) The rewriting of an expression as a longer butequivalent sum of terms.

Antonyms

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Derived terms

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Related terms

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Translations

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act of expanding
fractional change in unit length per unit length per unit temperature change
new addition
product to be used with a previous product

French

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FrenchWikipedia has an article on:
Wikipediafr

Etymology

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FromLatinexpānsiōnem.

Pronunciation

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Noun

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expansion f (pluralexpansions)

  1. expansion

Descendants

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Further reading

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Swedish

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Etymology

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FromLatinexpānsiō, attested from 1776.[1]

Pronunciation

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Noun

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expansion c

  1. expansion

Declension

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Declension ofexpansion
nominativegenitive
singularindefiniteexpansionexpansions
definiteexpansionenexpansionens
pluralindefiniteexpansionerexpansioners
definiteexpansionernaexpansionernas

Derived terms

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Related terms

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References

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  1. ^expansion in Svensk ordbok.
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