Definition of “momentum” - English Dictionary

british dictionary

“momentum” in British English

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momentumnoun [ U ]

uk /məˈmen.təm/ us /məˈmen.t̬əm/

C2 the force that keeps an object moving or keeps an event developing after it has started:

Once you push it, it keeps going under its own momentum.
The spacecraft will fly around the earth to gain/gather momentum for its trip to Jupiter.
The play loses momentum (= becomes less interesting, energetic, etc.) by its half way stage.
In an attempt to give new momentum to their plans, the committee set a date for starting detailed discussions.

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(Definition of “momentum” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“momentum” in American English

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momentumnoun [ U ]

us /moʊˈmen·təm/

physics the force or speed of an object in motion, or the increase in the rate of development of a process:

A falling object gains momentum as it falls.
Technology seems to create its own momentum – if something can be done, it will be.

(Definition of “momentum” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“momentum” in Business English

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momentumnoun [ U ]

uk /məʊˈmentəm/ us

the force that keeps an object moving or keeps an event developing after it has started:

gain/pick up/gather momentum Stocks gained momentum on strong quarterly reports across the tech world.
There is worrying evidence that the economy is losing momentum.
build/increase/add momentum We continue to build momentum in our quest to grow our businesses.
Election of business oriented leaders gave momentum to new downtown redevelopment.

(Definition of “momentum” from the Cambridge Business English Dictionary © Cambridge University Press)