sonic /'sonik; 'sanik/ adj relating to sound, soundwaves or the speed of sound: 聲音的; 音波的; 音速的: ~ bang/boom, noise made when an aircraft exceeds the speed of sound; 音爆 (飛機(jī)超過(guò)音速時(shí)所發(fā)的書(shū)聲); the ~ barrier, 令 sound barrier at sound1 (3). 音障。 csuperultra ~ .