terminal velocity: Meaning and Definition of

ter'minal veloc'ity

Pronunciation: [key]
    1. the velocity at which a falling body moves through a medium, as air, when the force of resistance of the medium is equal in magnitude and opposite in direction to the force of gravity.
    2. the maximum velocity of a body falling through a viscous fluid.
    1. the greatest speed that a rocket, missile, etc., attains after burnout or after leaving the barrel of a gun.
    2. the speed of a missile or projectile on impact with its target.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.