momentum

noun
mo·​men·​tum | \ mō-ˈmen-təm How to pronounce momentum (audio) , mə-\
plural momenta\ mō-​ˈmen-​tə How to pronounce momenta (audio) , mə-​ \ or momentums

Definition of momentum

1 : a property (see property sense 1a) of a moving body that the body has by virtue of its mass (see mass entry 2 sense 1c) and motion and that is equal to the product of the body's mass and velocity broadly : a property of a moving body that determines the length of time required to bring it to rest when under the action of a constant force or moment
2 : strength or force gained by motion or by a series of events The wagon gained momentum as it rolled down the hill.

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Examples of momentum in a Sentence

The company has had a successful year and hopes to maintain its momentum by introducing new products. The movie loses momentum toward the end.

Recent Examples on the Web

Spieth got within two by the turn but missed a short birdie putt on the par-5 12that could have swung momentum his way. Jim Vertuno, The Seattle Times, "Spieth fights back but eliminated on final hole," 29 Mar. 2019 Obviously, hyper-convoluted plot machinations can work if the film itself has enough momentum to propel the audience through it all, or if there’s some larger, overriding theme or sentiment tying it all together. Bryan Bishop, The Verge, "The Predator could have been the franchise’s chance to finally have an identity," 8 Sep. 2018 Fritz, 20, had the momentum — and a shot at reaching the third round of a Grand Slam event for the first time. Bryce Miller, sandiegouniontribune.com, "Lakers could contend sooner than you think; much work remains for Padres," 6 July 2018 The Angels had momentum on their side coming into the showdown with the Pirates after Joey DelNegri pitched a four inning no-hitter during a 10-0 triumph over the Indians in the elimination bracket final. Emmett Hall, Sun-Sentinel.com, "Pirates seize the gold in Fort Lauderdale Little League Major Division," 24 June 2018 The Pride had momentum throughout much of the first half and Sydney Leroux was among the players who generated some dangerous looks. Iliana Limón Romero, Pro Soccer USA, "Alanna Kennedy golazo helps lift Orlando Pride to 1-0 win over Washington Spirit," 24 June 2018 After school shootings in Parkland and Santa Fe, Texas, Democrats appeared to have the momentum on gun issues. Jim Morrill, charlotteobserver, "Why both Republicans and Democrats see guns as a winning issue in North Carolina," 7 June 2018 The following year, Donald Trump seized momentum in the Republican presidential primary by attacking immigration as a threat to Americans’ personal and national security, and Sessions saw an opportunity. Dara Lind, Vox, "Jeff Sessions gave Trump the immigration crackdown he wanted," 7 Nov. 2018 Ford isn’t the only domestic automaker to show big momentum in the 2018 Power IQS. NBC News, "South Korean cars rank highest for quality in new survey — but Detroit isn't far behind," 20 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'momentum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of momentum

1610, in the meaning defined at sense 1

History and Etymology for momentum

New Latin, from Latin, movement

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Statistics for momentum

Last Updated

17 May 2019

Look-up Popularity

Time Traveler for momentum

The first known use of momentum was in 1610

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More Definitions for momentum

momentum

noun

English Language Learners Definition of momentum

: the strength or force that something has when it is moving
: the strength or force that allows something to continue or to grow stronger or faster as time passes
physics : the property that a moving object has due to its mass and its motion

momentum

noun
mo·​men·​tum | \ mō-ˈmen-təm How to pronounce momentum (audio) \

Kids Definition of momentum

: the force that a moving body has because of its weight and motion

momentum

noun
mo·​men·​tum | \ mō-ˈment-əm, mə-ˈment- How to pronounce momentum (audio) \
plural momenta\ -​ˈment-​ə How to pronounce momenta (audio) \ or momentums

Medical Definition of momentum

: a property of a moving body that the body has by virtue of its mass and motion and that is equal to the product of the body's mass and velocity broadly : a property of a moving body that determines the length of time required to bring it to rest when under the action of a constant force

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Comments on momentum

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