n. In Roman antiquity, a military engine used to throw darts of great size, called phalarica or trifax.n. A small forked stick to each prong of which is attached an elastic band, generally provided with a piece of leather in the middle, used by boys for throwing small missiles, such as stones, peas, paper pellets, and the like.To hurl, as a missile, as from a catapult.To shoot at with a catapult: as, to catapult birds.To use a catapult in hurling missiles.