momentum

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

The campaign involves more than just advertising costs: To maintain momentum, studios shuttle stars and directors to numerous events in Los Angeles, New York and London so the nominees can get in front of as many Academy members as possible. Erich Schwartzel, WSJ, "Is an Oscar Campaign Worth the Time and Money?," 22 Feb. 2019 Now) there’s so much momentum in this sport: the class of competition, the caliber of teams, the support of sponsors. Jim Vertuno, The Seattle Times, "IndyCar revving up tons of momentum for 2019 season," 11 Feb. 2019 Successes in those early voting states can generate momentum (and free press coverage). Celeste Katz, Glamour, "How did ‘likability’ become a thing for women in politics?," 18 Jan. 2019 The recent chicken renaissance continues to gather momentum, and coops are becoming common in urban and suburban backyards. Denise Foley, Good Housekeeping, "Everything You Need to Know About Raising Backyard Chickens," 14 Aug. 2018 The momentum finally — finalllllly — turns into something for Croatia. Rory Smith, New York Times, "Croatia Digs Deeper, Burying England’s World Cup Dreams," 12 July 2018 With the song gaining momentum, Billboard has compiled some of the best and funniest dances from the challenge. Carl Lamarre, Billboard, "Watch Ciara, Odell Beckham Jr., Kevin Hart & More Take Part in Drake's 'In My Feelings' Dance Challenge," 9 July 2018 Efforts to make community college free have gained momentum across the nation, particularly as the cost of four-year colleges soars out of reach for many families. Luke Broadwater, baltimoresun.com, "500 Baltimore public school students accepted in free community college program," 25 June 2018 Jump forward, swinging your arms for momentum, and land lightly on your heels. Philly.com, "4 essential strength training moves for cyclists," 5 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

8 Mar 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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