(of a young adult) Inability to leave home and begin a self-supported life.

plural of launch lug

(model rocketry) A small vertical tube affixed to the side of a model rocket, which engages with a launch rod to stabilize the rocket's trajectory in its first few feet of flight.

plural of launch complex

(military) A form of vertical launching system where the missile is expelled by gas produced by a separate gas generator, and only ignites afterwards.

plural of failure to launch

(military) A technique in which the first motion of the missile or aircraft removes it from the launcher. Normally, such a launch occurs before the missile fuel or aircraft engine is fired.

(transport, space science) A Shuttle-derived heavy launch vehicle being designed by NASA to replace the Space Shuttle.

(humorous, colloquial) To vomit.

(archaic) second-person singular simple present form of launch