expansion

名词 n.
中文释义

英文释义

名词 n.
  1. An act, process, or instance of expanding. countable,uncountable
    — The expansion of metals and plastics in response to heat is well understood.
  2. An act, process, or instance of expanding.; The fractional change in unit length per unit length per unit temperature change. countable,uncountable
    — Look up the expansion of 1018 steel at stick welding temps and figure out how far this thing's gonna bend once we weld it up.
  3. An act, process, or instance of expanding.; A new addition. countable,uncountable
    — My new office is in the expansion behind the main building.
  4. An act, process, or instance of expanding.; A product to be used with a previous product. countable,uncountable
    — This expansion requires the original game board.
  5. An act, process, or instance of expanding.; That which is expanded; expanse; extended surface. countable,uncountable
    — 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 starred expansion of the skies.
  6. An act, process, or instance of expanding.; 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. countable,uncountable
  7. An act, process, or instance of expanding.; The replacement of a short name (e.g., acronym, initialism, alphanumeric symbol, abbreviation) with the longer name that is synonymous with it, as when spelling out acronyms to ensure clarity for a general audience. countable,uncountable
    — Expansion of acronyms is often helpful for nonexpert readers (anacronyms excluded).
  8. An act, process, or instance of expanding.; The replacement of a short name (e.g., acronym, initialism, alphanumeric symbol, abbreviation) with the longer name that is synonymous with it, as when spelling out acronyms to ensure clarity for a general audience.; The string of text thus substituted. countable,uncountable
    — The acronym "FNDs" can mean either "functional neurologic disorders" or "focal neurologic deficits", so you'd better use the expansion 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.
  9. An act, process, or instance of expanding.; Ellipsis of expansion pack. abbreviation,alt-of,countable,ellipsis,uncountable
  10. An act, process, or instance of expanding.; An increase in the market value of an economy over time. countable,uncountable
    — Secondly, the cyclical expansion now taking shape in the United States is starting from a relatively high level; it has much less headroom than earlier expansions that began from a deeply deflated recession base.
  11. An act, process, or instance of expanding.; Stretching of geometric objects with flat sides. countable,uncountable
  12. An act, process, or instance of expanding.; The rewriting of an expression as a longer but equivalent sum of terms. countable,uncountable

词形变化

expansions plural

词汇关系

反义词
contraction shrinkage
衍生词
alloexpansion antiexpansion coefficient of thermal expansion coexpansion cofactor expansion compansion ego-expansion expansin expansion adapter expansional expansionary expansion card expansion cleat expansion club expansion cooling expansionism expansionist expansion joint expansionless expansion pack expansion set expansion slot expansion tank expansion team expansion turbine expansion vessel hyperexpansion in-line expansion Joule-Thomson expansion Laplace expansion macro expansion microexpansion multiple expansion nonexpansion overexpansion postexpansion reexpansion Sudakov expansion Taylor expansion underexpansion
相关词
expand expanse expansive

词源

Borrowed from French expansion, from Latin expānsiō. By surface analysis, expand + -sion.
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