ex|pan|sion

ex|pan|sion
ex|pan|sion «ehk SPAN shuhn», noun.
1. the act or process of expanding: »

Heat causes the expansion of gas.

2. the state of being expanded; increase in size, volume, or other dimension: »

The expansion of the factory made room for more machines.

3. a) an expanded part or form: »

Figurative. That book is an expansion of a magazine article.

 b) anything that is spread out; an expanse.
4. the amount or degree of expansion.
5. Mathematics. the fuller development of an indicated operation: »

The expansion of (a + b)3 is a3 + 3a2b + 3ab2 + b3.

6. the increase in bulk of the power medium which takes place in a cylinder of an engine, especially of steam after communication with the boiler is cut off or of gasoline after explosion in an internal-combustion engine.
╂[< Late Latin expānsiō, -ōnis < Latin expandere; see etym. under expand (Cf. ↑expand)]

Useful english dictionary. 2012.

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Look at other dictionaries:

  • ex|pan|sion|ar|y — «ehk SPAN shuh NEHR ee», adjective. 1. having to do with or tending toward expansion. 2. Figurative. inflationary: »The economy is in a long term expansionary trend (Wall Street Journal) …   Useful english dictionary

  • re-ex|pan|sion — re|ex|pan|sion or re ex|pan|sion «REE ehk SPAN shuhn», noun. the act of reexpanding …   Useful english dictionary

  • re|ex|pan|sion — or re ex|pan|sion «REE ehk SPAN shuhn», noun. the act of reexpanding …   Useful english dictionary

  • ex|pan|sion|ism — «ehk SPAN shuh nihz uhm», noun. a policy of expansion, for example of territory or currency: »Present day economics…propagates a philosophy of unlimited expansionism, without any regard to the true and genuine needs of man, which are limited (The …   Useful english dictionary

  • ex|pan|sion|is|tic — «ehk SPAN shuh NIHS tihk», adjective. = expansionist. (Cf. ↑expansionist) …   Useful english dictionary

  • ex|pan|sion|ist — «ehk SPAN shuh nihst», noun, adjective. –n. a person who advocates a policy or a theory of expansion, especially an advocate of expansion of the territory or currency of a country. –adj. of or having to do with expansionism; favoring expansion …   Useful english dictionary

  • tri|ple-ex|pan|sion engine — «TRIHP uhl ehk SPAN shuhn», a steam engine in which the steam passes into three cylinders in succession, so that the expansive force is used in three stages …   Useful english dictionary

  • pan — pan·a·ce; pan·a·cea; pan·a·ce·an; pan·a·chage; pan·a·chure; pan·agglutinability; pan·agglutinable; pan·agglutination; pan·a·mint; pan·a·ri·ti·um; pan·arteritis; pan·arthritis; pan·a·ry; pan·a·tela; pan·ath·e·naea; pan·ath·e·na·ic;… …   English syllables

  • ex·pan·sion — /ıkˈspænʃən/ noun, pl sions 1 [noncount] : the act of becoming bigger or of making something bigger : the act of expanding territorial expansion The league is undergoing expansion. economic expansion the …   Useful english dictionary

  • sion — abra·sion; ab·scis·sion; ab·ster·sion; ac·cen·sion; ac·ces·sion·al; ad·he·sion; ad·he·sion·al; ad·mis·sion; ad·pro·mis·sion; af·fu·sion; ag·gres·sion; al·li·sion; al·lu·sion; am·bi·ver·sion; an·i·mad·ver·sion; an·te·ver·sion; an·ti·mis·sion;… …   English syllables

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