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expansion

[ik-span-shuhn]

noun

the act or process of expanding.

the state or quality of being expanded.

the amount or degree of expanding.

an expanded, dilated, or enlarged portion or form of a thing: The present article is an expansion of one he wrote last year.

anything spread out; expanse.

EXPAND

Mathematics.

the development at length of an expression indicated in a contracted form, as a² + 2ab + b² for the expression (a + b)².

any mathematical series that converges to a function for specified values in the domain of the function, as 1 + x + x² + … for 1/(1 − x) when x < 1.

Machinery. that part of the operation of an engine in which the volume of the working medium increases and its pressure decreases.

an increase in economic and industrial activity (opposed to contraction).

COLLAPSE

Origin:
1605–15; < Late Latin expānsiōn- (stem of expānsiō) a spreading out. See expanse, -ion

Related forms

ex·pan·sion·al, adjective

an·ti·ex·pan·sion, adjective

non·ex·pan·sion, noun

o·ver·ex·pan·sion, noun

pre·ex·pan·sion, noun

EXPAND

re·ex·pan·sion, noun

self-ex·pan·sion, noun

su·per·ex·pan·sion, noun

COLLAPSE

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Link To expansion

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Expansion is always a great word to know.

So is coefficient. Does it mean:

the operation or process of finding the difference between two numbers or quantities, denoted by a minus sign (?)

a number or quantity placed before and multiplying another quantity, such as 3 in the expression 3x

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Example Sentences

Maybe it seems absurd to propose expansion of early childhood education at a time when budgets are being slashed.

Chapman, whose campus is three miles from the church property, wanted the site for expansion plans.

The expansion is compounded as in compounded interest your earned with bank deposit.

EXPAND

Maybe it seems absurd to propose expansion of early childhood education at a time when budgets are being slashed.

Chapman, whose campus is three miles from the church property, wanted the site for expansion plans.

The expansion is compounded as in compounded interest your earned with bank deposit.

Archaeologists revisited the site in recent years because it was threatened by modern agricultural expansion.

Dark energy, on the other hand, originates from our efforts to understand the observed accelerated expansion of the universe.

The expansion of coyotes into urban areas, though, is recent.

India has emerged as central component of the global expansion plans for many college and universities.

The expansion of private equity will become an increasingly global phenomenon, and this will happen faster than commonly thought.

With the westward expansion of human settlements, persecution and habitat destruction whittled away at eagle numbers.

If they knew how the rate of expansion was changing over time, they could deduce the shape of the universe.

And two of the city's largest museums have announced ambitious expansion plans.

The new dean will play a key role in the continuing expansion of the faculty.

The result was a broad expansion in government spending and intervention in all the richer economies.

Light from these objects gets stretched into longer, redder wavelengths by the universe's accelerated expansion.

Dark energy does more than hurry along the expansion of the universe.

Both areas have lost species because of the depletion of the water supply and agricultural expansion.

The marginal resources used to finance this expansion of college graduates could often be better deployed elsewhere.

But it must be repeated again that inflation is monetary expansion.

The expansion stretched the universe from a size smaller than an atom to astronomical proportions in a fraction of a second.

Distant supernovae are revealing the crucial time when the expansion of the universe changed from decelerating to accelerating.

The trend was accompanied by expansion in the number of commercial seed and nursery entrepreneurs.

Even our huge endowment does not produce enough income to sustain our continued expansion.

Many of these companies began their expansion into foreign markets decades ago.

Urban expansion and intensive commercial logging seriously threaten the native habitats of this ecoregion.

At a minimum, multilateral international security for nuclear materials is essential to the expansion of nuclear power.

Extraordinary expansion leads to the need to change structures of governance.

In the postwar period, the average expansion has been about five years long.

The expansion finding can now help researchers better understand how the immune system works and find ways to enhance it.

It is a means to the larger end: our continued expansion and survival as a species audaces fortuna iuvat.

For the traders themselves, expansion abroad makes sense.

Universal expansion has occurred regardless of the existence of any hypothetical dark energy.

Instead it is a story of consistent, tightly managed expansion and risk-taking.

In order for the expansion to occur something must decrease in volume.

Another way to think of the problem is in terms of cosmic expansion.

The radial force of expansion produces the apparent omnidirectional expansion as a lateral component motion.

Climate change didn't bring this fence, but it is providing a fresh reason for its existence and ongoing expansion.

Several companies announced plans for expansion and modernization yesterday.

Distant supernovae are revealing the crucial time when the expansion of the universe changed from decelerating to.

The standard model still can't explain why the expansion of the universe is.

Globalization results in the expansion of international cultural, economic, and.

Cosmic expansion may leave astronomers of the far future with no hint of the big bang that started it.

Early in the history of our own universe, some postulate, there was a period of extraordinary expansion called inflation.

The big box retailer completed its remodel and expansion of its videogame.

The board expansion followed a series of bitterly fought elections for alumni trustees.

America's nuclear industry is about to embark on its biggest expansion in more than a generation.

According to the researchers, the findings suggest that expansion of memory may have driven the evolution of intelligence.

It is important to note the expansion occurs between galaxies and clusters.

Cleland likened its expansion and contraction to the inflation and deflation of a balloon.

The rapid expansion of the for-profit sector has also fueled the program's growth.

With expansion comes people's garbage and pets-lures for bears and mountain lions.

The latest covers the studio's expansion into other media productions, including word of a new animated series.

The clutter you see here may be a more direct consequence of rapid expansion than it is of regulation.

Bill characterized by being nicely parallel sided, lacking an expansion at the gonydeal angle.

New doubts about whether the universe's expansion is accelerating.

China's rapid urbanisation and economic expansion helped them weather the recent recession in the rich world.

Such skills are essential to the future expansion of human presence into deeper space.

The scarcity of tourists has halted some ambitious expansion plans, and is a blow to fragile economies.

Expansion of domesticated animal populations has created tension over land use for pasture, agriculture, and wildlife habitat d.

Irish governments sought to offset the cut in living standards imposed by higher oil prices through fiscal and monetary expansion.

Urban expansion is also encroaching on wildlife habitats everywhere.

But the technology needed to do so would entail a dangerous expansion of.

They solve for the expansion rate of this averaged universe and equate it with the average expansion rate of the actual universe.

And cognitive neuroscientists have cited the scans heavily in the recent, vast expansion in understanding of the brain.

All these companies eagerly support the expansion of control programs.

Standing still because the consumption of space is greater than the expansion rate of space creates black holes.

The evidence for the universe's accelerated or uneven expansion is that distant supernovae look dimmer than expected.

Crucially, he says, the paper fails to account for the huge expansion in the area of fisheries over time.

Is anyone tracking the expansion of the globe and the raising sea levels.

Orangutans are critically endangered in the wild because of rapid deforestation and the expansion of palm oil plantations.

Monetary expansion is a necessary and sufficient condition to cause the boom and bust.

It's not only the crisis but also the types of problems people face these days that have fueled the expansion of the cults.

COLLAPSE

Collins

World English Dictionary

expansion (ɪkˈspænʃən)

—n
1.	the act of expanding or the state of being expanded
2.	something expanded; an expanded surface or part
3.	the degree, extent, or amount by which something expands
4.	an increase, enlargement, or development, esp in the activities of a company
5.	maths
	a. the form of an expression or function when it is written as the sum or product of its terms
	b. the act or process of determining this expanded form
6.	the part of an engine cycle in which the working fluid does useful work by increasing in volume
7.	the increase in the dimensions of a body or substance when subjected to an increase in temperature, internal pressure, etc

ex'pansionary

—*adj*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source

Etymonline

Word Origin & History

expansion

1610s, "anything spread out;" 1640s, "act of expanding," from Fr. expansion, L.L. expansionem (nom. expansio) "a spreading out," from L. expandere (see expand).

American Heritage

Medical Dictionary

expansion ex·pan·sion (ĭk-spān'shən)
n.

An increase in size.
The spreading out of a structure, such as a tendon.

American Heritage

Science Dictionary

expansion

(ĭk-spān'shən) Pronunciation Key

An increase in the volume of a substance while its mass remains the same. Expansion is usually due to heating. When substances are heated, the molecular bonds between their particles are weakened, and the particles move faster, causing the substance to expand.
A number or other mathematical expression written in an extended form. For example, a² + 2ab + b² is the expansion of (a + b)².

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Matching Quote

"Our civility, England determines the style of, inasmuch as England is the strongest of the family of existing nations, and as we are the expansion of that people. It is that of a trading nation; it is a shopkeeping civility. The English lord is a retired shopkeeper, and has the prejudices and timidities of that profession."

-Ralph Waldo Emerson

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