transonic
/tranˈsɒnɪk
/ /trɑːnˈsɒnɪk/(also trans-sonic)
adjective
Denoting or relating to speeds close to that of sound.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.
Origin
1940s: from trans- 'through, across' + sonic, on the pattern of words such as supersonic.