Orion drive

Etymology
, since it originated from, a U.S. government study from the 1950s.

Noun

 * 1)  A theoretical means to propel spacecraft through space, by detonating nuclear bombs behind the spaceship and riding the nuclear explosions that push against the rear mounted pusher plate.
 * 2) An engine using such a method.

Coordinate terms

 * nuclear-thermal drive
 * nuclear-electric drive