mo·men·tum (m-mntm)
n. pl. mo·men·ta (-t) or mo·men·tums
1. Symbol p Physics A measure of the motion of a body equal to the product of its mass and velocity. Also called linear momentum.
2.
a. Impetus of a physical object in motion.
b. Impetus of a nonphysical process, such as an idea or a course of events: The soaring rise in interest rates finally appeared to be losing momentum.
3. Philosophy An essential or constituent element; a moment.