| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024mo•men•tum /moʊˈmɛntəm/USA pronunciation n. [uncountable]- force or speed of movement;
impetus, as of a physical object:The car gained momentum as it hurtled down the street. - force or speed, as of events:a career that had lost momentum.
WordReference Random House Unabridged Dictionary of American English © 2024mo•men•tum (mō men′təm),USA pronunciation n., pl. -ta (-tə),USA pronunciation -tums. - force or speed of movement;
impetus, as of a physical object or course of events:The car gained momentum going downhill. Her career lost momentum after two unsuccessful films. - Mechanicsa quantity expressing the motion of a body or system, equal to the product of the mass of a body and its velocity, and for a system equal to the vector sum of the products of mass and velocity of each particle in the system.
- Philosophymoment (def. 7).
- Latin mōmentum; see moment
- 1690–1700
Collins Concise English Dictionary © HarperCollins Publishers:: momentum /məʊˈmɛntəm/ n ( pl -ta / -tə/, -tums)- the product of a body's mass and its velocity
Symbol: p - the impetus of a body resulting from its motion
- driving power or strength
Etymology: 17th Century: from Latin: movement; see moment |