(n) the product of the momentum of a rotating body and its distance from the axis of rotation, Example:any rotating body has an angular momentum about its center of mass; angular momentum makes the world go round
n.; pl. L. Momenta F. Momentums [ L. See Moment. ] 1. (Mech.) The quantity of motion in a moving body, being always proportioned to the quantity of matter multiplied by the velocity; impetus. [ 1913 Webster ]
2. Essential element, or constituent element. [ 1913 Webster ]
I shall state the several momenta of the distinction in separate propositions. Sir W. Hamilton. [ 1913 Webster ]
3. A property of an activity or course of events, viewed as analogous to forward motion or to physical momentum (def. 1), such that the activity is believed to be able to continue moving forward without further application of force or effort; -- often used to describe an increase in the acquisition of public support for a purpose; as, as, the petition drive gained momentum when it was mentioned in the newspapers. [ PJC ]
[如火如荼, rú huǒ rú túㄖㄨˊ ㄏㄨㄛˇ ㄖㄨˊ ㄊㄨˊ] lit. white cogon flower like fire (成语 saw); fig. a mighty army like wildfire; daunting and vigorous (momentum); flourishing; magnificent#16374
[推波助澜 / 推波助瀾, tuī bō zhù lánㄊㄨㄟ ㄅㄛ ㄓㄨˋ ㄌㄢˊ] to push the wave and add to the billows (成语 saw); to add momentum; to encourage sth to get bigger; to add fuel to the fire#25010
[如火如茶, rú huǒ rú cháㄖㄨˊ ㄏㄨㄛˇ ㄖㄨˊ ㄔㄚˊ] common erroneous version of 如火如荼 (tu2) (成语 saw), daunting and vigorous (momentum); magnificent, See Also: 如火如荼, 成语