velocity

ve*loc*i*ty

noun

{bc}quickness of motion {bc}{sx|speed||}

angular velocity

noun

{bc}the rate of rotation around an axis usually expressed in radians or revolutions per second or per minute

escape velocity

noun

{bc}the minimum velocity that a moving body (such as a rocket) must have to escape from the gravitational field of a celestial body (such as the earth) and move outward into space