- 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.
Origin of expansion
OTHER WORDS FROM expansion
Words nearby expansion
How to use expansion in a sentence
Still, the expansion in testing alone can’t fully explain the current case uptick, at least not in every country.The new Covid-19 case surge in Europe, explained|Julia Belluz|September 17, 2020|Vox
China is a great nation, and we should hope for the continued expansion.Trump’s most popular YouTube ad is a stew of manipulated video|Glenn Kessler, Meg Kelly|September 17, 2020|Washington Post
Many factors are driving the violent expansion of this years' wildfires.West Coast wildfire smoke is visible from outer space|María Paula Rubiano A.|September 16, 2020|Popular-Science
A few days later, Pfizer announced plans to expand the number of participants enrolled in its clinical trials by the thousands but gave little details on the expansion.AstraZeneca resumed its COVID-19 vaccine trials after uncovering a mysterious reaction|Claire Maldarelli|September 15, 2020|Popular-Science
In April, there was an hourlong “Election Administration Forum Conference Call” that covered, in part, the expansion of mail-in voting and “ways to message these concerns to your constituents,” according to the invitation.No Democrats Allowed: A Conservative Lawyer Holds Secret Voter Fraud Meetings With State Election Officials|by Mike Spies, Jake Pearson and Jessica Huseman|September 15, 2020|ProPublica
Missy Suicide, formerly known as Selena Mooney, is in New York for a series of brand-expansion meetings.Masters of Alt Sex: SuicideGirls Hits Puberty and Wants to Invade Your TV Set|Marlow Stern|December 9, 2014|DAILY BEAST
He recently put up $50 million for half the cost of the Kennedy Center expansion, where he is chairman of the board.Patriotic Philanthropy: Not an Oxymoron|Eleanor Clift|November 27, 2014|DAILY BEAST
Tellingly, but not coincidentally, the greatest expansion of Medicaid has occurred in Deep Blue America.With Immigration Move, Obama and the Welfare Party Strike Again|Lloyd Green|November 24, 2014|DAILY BEAST
Even the most adamant Obamacare opponent must acknowledge, as Kasich has, that its coverage expansion has helped some people.John Kasich: The GOP’s Hobbled 2016 Dark Horse|W. James Antle III|November 3, 2014|DAILY BEAST
He also has backed Medicaid expansion and a state-run exchange under Obamacare.The Secret GOP Swing State Election Romp|John Avlon|October 28, 2014|DAILY BEAST
This engine only took steam during the first quarter of its stroke, the remaining three-quarters were by the expansion.
This most simple steam-engine combined in the greatest degree the two elements of expansion and momentum.
The coal burnt under the boiler gives a duty of sixty-six millions, or an expansion of 60 per cent.
Every step which she took toward relieving herself from obligations added to her strength and expansion as an individual.The Awakening and Selected Short Stories|Kate Chopin
The settlement no doubt was influenced by the imminence of a large expansion of policy—the ill-starred Irish expedition.King Robert the Bruce|A. F. Murison
British Dictionary definitions for expansion
- the form of an expression or function when it is written as the sum or product of its terms
- the act or process of determining this expanded form