One of the mysteries of the English language finally explained.
Denoting or relating to speeds close to that of sound.
- ‘This isn't to make the aerodynamics of a trans-sonic aircraft sound simple - a lot more is going on with the airflow - but I hope it's enough to answer your question.’
- ‘You don't want an arm sticking out when you go from transonic to supersonic.’
- ‘When a bullet in free flight is in transonic velocity range both above and below the speed of sound, it's subject to forces detrimental to accuracy.’
- ‘Aerodynamic forces cause vibrations at the tip of a blade where the effects of transonic speeds cause buffeting and vibration.’
- ‘It is primarily intended to benefit aircraft that operate in the transonic speed range.’
1940s: from trans- ‘through, across’ + sonic, on the pattern of words such as supersonic.
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