momentum

A quantity used to measure the motion of a body, equal to the product of the body’s mass and its velocity.

The force or energy exhibited by a moving body.

The driving force or advancing strength of a development or course of events.

An essential or constituent element; a moment.

In mech., the product of the mass and velocity of a body; the quantity of motion of a body.

An impulse; an impelling force; impetus.

Constituent or essential element. Compare moment, 6.

In musical notation, an eighth-rest.

The quantity of motion in a moving body, being always proportioned to the quantity of matter multiplied by the velocity; impetus.