"gravity assist." YourDictionary, n.d. Web. 14 October 2018. <http://www.yourdictionary.com/gravity-assist>.
gravity assist. (n.d.). Retrieved October 14th, 2018, from http://www.yourdictionary.com/gravity-assist
(plural gravity assists)
Yes, I'd like to receive Word of the Day emails from YourDictionary.com
By continuing, you agree to our
Please set a username for yourself.
People will see it as Author Name with your public flash cards.