A device or weapon for throwing or launching large objects, such as a mechanical aid on aircraft carriers designed to help airplanes take off from the flight deck.
User Defined Definitions
"a plaything consisting of a Y-shaped stick with elastic between the arms; used to propel small stones"
"a device that launches aircraft from a warship"
"an engine that provided medieval artillery used during sieges; a heavy war engine for hurling large stones and other missiles"