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Definition of momentum

momentum

/moʊˈmɛn.təm/
mo · men · tum
Adverb:momentously
•
Plural:momenta
•
Adjective:momentous
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momentum Lexical Profile

momentum Game Scores & Validity

• noun

1

The driving force, strength, or energy gained by a series of events, a process, or an activity as it develops and progresses.

Example

"The grassroots campaign gained significant momentum after the endorsement from local community leaders."

2

In physics, the quantity of motion of a moving body, measured as the product of its mass and velocity.

Example

"A heavy freight train traveling at high speed possesses an enormous amount of momentum and requires a long distance to come to a stop."

Synonyms
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Antonyms
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• Rhymes for momentum

• Nearby Words

momentary
momentous
momentously
momentum
mommy
mompreneur
monaco

Word Origin & Etymology

Borrowed in the 17th century directly from Latin momentum ('movement, moving power, impulse'), a contraction of movimentum, derived from the verb movere ('to move').

Cite this Entry

Wordmom. (2026). Definition of Momentum. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/momentum
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