hypersonic weapons travel at extremely high speeds, anywhere from 3,840 to 16,250 miles an hour.
Unsurprisingly, Russia has started work on hypersonic weapons.
hypersonic drones, like the drones before them, are the latest innovation in push-button warfare.
Relating to or capable of speeds equal to or exceeding five times the speed of sound (Mach 5 and above). Compare subsonic, supersonic, transonic.