Angular Momentum Definition

ănggyə-lər
noun
The vector product of the position vector (from a reference point) and the linear momentum of a particle.
American Heritage
The momentum characteristic of a rotating object; the product of linear momentum and the perpendicular distance from the origin of coordinates to the path of the object: the conservation of angular momentum causes a spinning skater, star, etc. to increase (or decrease) in velocity as the radius is reduced (or increased)
Webster's New World
The vector sum of the angular momentums of each infinitesimal component particle of an extended body.
American Heritage

(physics) The vector product that describes the rotary inertia of a system about an axis and is conserved in a closed system. For an isolated rigid body, it is a measure of the extent to which an object will continue to rotate in the absence of an applied torque.

Wiktionary

Other Word Forms of Angular Momentum

Noun

Singular:
angular momentum
Plural:
angular momenta

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