expansion
noun
ex·pan·sion
ik-ˈspan(t)-shən 
1
: expanse
2
: the act or process of expanding
territorial expansion
economic expansion
expansion of the universe
3
: the quality or state of being expanded
4
: the increase in volume of working fluid (such as steam) in an engine cylinder after cutoff or in an internal combustion engine after explosion
5
a
: an expanded part
b
: something that results from an act of expanding
the book is an expansion of a lecture series
6
: the result of carrying out an indicated mathematical operation : the expression of a function in the form of a series
Synonyms
Examples of expansion in a Sentence
The league is undergoing expansion.
the expansion of a lecture series into a book
This book is an expansion of a lecture series.
Recent Examples on the Web
Disney's capital expenditures totaled $5.4 billion, primarily for theme park expansions and new attractions.
—
Quartz Bot, Quartz, 14 Nov. 2024
Over the past five years, California’s economy ranked 13th-best for the expansion of its gross domestic product – the broadest measurement of business output.
—Jonathan Lansner, Orange County Register, 14 Nov. 2024
The acquisition opens new doors for digital expansion and scientific events, allowing LabX to deepen its connection with the science community and provide readers with even more ways to explore and understand the world of science.
—Discover Staff, Discover Magazine, 8 Nov. 2024
Asked if South Carolina should expand Medicaid, Simmer said the challenges South Carolina and other states confront are worsened by health care provider shortages and structural inequities too large and complicated for Medicaid expansion alone to solve.
—Kff Health News, The Mercury News, 8 Nov. 2024
See all Example Sentences for expansion 
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Quartz Bot, Quartz, 14 Nov. 2024
Over the past five years, California’s economy ranked 13th-best for the expansion of its gross domestic product – the broadest measurement of business output.
—Jonathan Lansner, Orange County Register, 14 Nov. 2024
The acquisition opens new doors for digital expansion and scientific events, allowing LabX to deepen its connection with the science community and provide readers with even more ways to explore and understand the world of science.
—Discover Staff, Discover Magazine, 8 Nov. 2024
Asked if South Carolina should expand Medicaid, Simmer said the challenges South Carolina and other states confront are worsened by health care provider shortages and structural inequities too large and complicated for Medicaid expansion alone to solve.
—Kff Health News, The Mercury News, 8 Nov. 2024
See all Example Sentences for expansion
Dictionary Entries Near expansion
Cite this Entry
“Expansion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expansion. Accessed 28 Nov. 2024.
Copy CitationKids Definition
expansion
noun
ex·pan·sion
ik-ˈspan-chən
1
: the act of expanding
2
: the state of being expanded
3
: something expanded or a result of expanding
4
: the result of carrying out indicated mathematical operations
the expansion of (a + b)2 is a2 + 2ab + b2
Medical Definition
expansion
noun
ex·pan·sion
ik-ˈspan-chən
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