| 单词 | supersonic |
| 释义 | supersonic (once / 10755 pages) 1adj 2adj It’s faster than the speed of sound, it’s supersonic! Seriously. Supersonic describes things that can travel faster than the speed of sound, like the passenger jet Concorde that used to zip from New York to London in under four hours. Anything supersonic is so fast that you see it before you hear it. A high-speed fighter jet is supersonic, but there aren't any supersonic passenger planes since Concorde's retirement in 2003. Space shuttles and modern bullets are still supersonic. Originally, the word supersonic meant "having to do with sound waves beyond human hearing," but by 1934 it described movement exceeding the speed of sound, with ultrasonic taking on the old meaning. Sonic comes from the Latin sonus, or "sound." WORD FAMILYsupersonic: supersonically+/sonic: sonically, subsonic, supersonic/subsonic: subsonically USAGE EXAMPLESThe supersonic plane will be the centrepiece of the new £16m Bristol Aerospace Centre museum that is under construction and due to open in 2017. BBC(Dec 26, 2016) There is currently a ban on overland supersonic flight. The Guardian(Dec 23, 2016) Good Luck and a very Happy Supersonic Christmas to you. BBC(Dec 14, 2016) 1 adj (of speed) greater than the speed of sound in a given medium (especially air) 2a supersonic bomber flies so fast that it must release its bombs while the target is still over the horizon Ant sonic, transonic (of speed) having or caused by speed approximately equal to that of sound in air at sea level subsonic(of speed) less than that of sound in a designated medium adj having frequencies above those of audible sound Syn ultrasonic inaudible, unhearable impossible to hear; imperceptible by the ear |
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