gravity assist
noun
the technique of using the energy of a gravitational field and the orbital velocity of a planet to change the speed and trajectory of a spacecraft.
Nearby words
gravitative, gravitino, graviton, gravitropism, gravity, gravity assist, gravity cell, gravity clock, gravity dam, gravity escapement, gravity fault
Also called gravitational slingshot.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019