jet propulsion
thrust produced by passing a jet of matter in the opposite direction to the direction of motion
en-US/ˈd͡ʒɛt pɹəˈpʌlʃən/
en-GB/ˈd͡ʒɛt pɹəˈpʌlʃn/
thrust produced by passing a jet of matter in the opposite direction to the direction of motion