expansion

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noun ex·pan·sion \ik-ˈspan(t)-shən\

Definition of expansion

  1. 1 :  expanse

  2. 2 :  the act or process of expanding <territorial expansion> <economic expansion> <expansion of the universe>

  3. 3 :  the quality or state of being expanded

  4. 4 :  the increase in volume of working fluid (as steam) in an engine cylinder after cutoff or in an internal combustion engine after explosion

  5. 5 a :  an expanded part b :  something that results from an act of expanding <the book is an expansion of a lecture series>

  6. 6 :  the result of carrying out an indicated mathematical operation :  the expression of a function in the form of a series

expansional

play \-ˈpanch-nəl, -chə-nəl\ adjective

Examples of expansion in a sentence

  1. The league is undergoing expansion.

  2. the expansion of a lecture series into a book

  3. This book is an expansion of a lecture series.

1611

First Known Use of expansion

1611


EXPANSION Defined for English Language Learners

expansion

play
noun ex·pan·sion \ik-ˈspan(t)-shən\

Definition of expansion for English Language Learners

  • : the act of becoming bigger or of making something bigger : the act of expanding

  • : a more complete and detailed written work or set of comments based on something shorter


EXPANSION Defined for Kids

expansion

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noun ex·pan·sion \ik-ˈspan-shən\

Definition of expansion for Students

  1. :  the act of growing or increasing :  enlargement


Medical Dictionary

expansion

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noun ex·pan·sion \ik-ˈspan-chən\

Medical Definition of expansion

  1. 1:  the act or process of expanding

  2. 2:  the quality or state of being expanded



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