momentum

noun
mo·​men·​tum | \ mō-ˈmen-təm , mə-\
plural momenta\ -​ˈmen-​tə \ 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

Certain restaurants in New York seem to gather momentum quietly, the hype brewing only weeks after the menu is revealed. Lilah Ramzi, Vogue, "Bienvenue, L’Avenue! The Parisian Restaurant Lands at Saks With a Designer-Filled First Supper," 1 Feb. 2019 This year’s Women’s March agenda focuses on sustaining that momentum through grassroots approaches to activism. Kaylen Ralph, Teen Vogue, "Women's March 2019: Everything You Need to Know," 9 Jan. 2019 The political will to fight climate change gained considerable momentum. Umair Irfan, Vox, "Climate and energy news in 2018 actually wasn’t all bad," 1 Jan. 2019 But there was enough momentum behind the project that Foré decided the logical thing to do was for the group to create their own distribution. Scott Gilbertson, Ars Technica, "A tour of elementary OS, perhaps the Linux world’s best hope for the mainstream," 28 Dec. 2018 That attempt is the fourth there since 2004, but supporters say there’s more momentum this year because of recent events. Phil Diehl, sandiegouniontribune.com, "Protesters to return with weekend gun show," 13 July 2018 Qualcomm executives also believe that their momentum is paying off with app developers. Mark Hachman, PCWorld, "Qualcomm's Snapdragon 8cx for PCs aims to overcome the performance gap," 6 Dec. 2018 Anyone who’s ever waded into the sea and ridden the momentum of the waves is technically a bodysurfer. Jamie Brisick, WSJ, "The Rush of Bodysurfing in Rio: A Traveler’s Guide," 3 Jan. 2019 The fact that this bill has garnered so much momentum is a major credit to the sustained #MeToo movement and a shifting office culture on the issue, the aide said. Li Zhou, Vox, "Congress’s recently passed sexual harassment bill, explained," 20 Dec. 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 Feb 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 \

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- \
plural momenta\ -​ˈment-​ə \ 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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