01 n. A property possessed by a moving body in virtue of its weight and its motion; the force with which any body is driven or impelled; momentum.
-
1.
A property possessed by a moving body in virtue of its weight and its motion; the force with which any body is driven or impelled; momentum.
-
2.
Fig.: Impulse; incentive; stimulus; vigor; force; as, the President's strong recommendation provided the impetus needed to pass the campaign reform bill.
-
3.
The altitude through which a heavy body must fall to acquire a velocity equal to that with which a ball is discharged from a piece.(Gun.)