momentum
//məˈmɛntəm//
Noun
momentumSingular
momentaPlural
1
The quantity of motion of a moving body, measured as a product of its mass and velocity.
The momentum of the ball increased as it rolled down the hill.
2
The impetus gained by a moving object or process; the driving force or strength that allows something to continue or grow stronger.
The campaign gained momentum after the celebrity endorsement.