torpedo: an explosive device that is set off in an oil well (or a gas well) to start or to increase the flow of oil (or gas)
torpedo: a small firework that consists of a percussion cap and some gravel wrapped in paper; explodes when thrown forcefully against a hard surface
torpedo: a small explosive device that is placed on a railroad track and fires when a train runs over it; the sound of the explosion warns the engineer of danger ahead
torpedo: armament consisting of a long cylindrical self-propelled underwater projectile that detonates on contact with a target
electric ray, crampfish, numbfish, torpedo: any sluggish bottom-dwelling ray of the order Torpediniformes having a rounded body and electric organs on each side of the head capable of emitting strong electric discharges