Sonic

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Sonic

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1. In aerodynamics, of or pertaining to the speed of sound; that which moves at acoustic velocity as in sonic flow ; designed to operate or perform at the speed of sound, as in sonic leading edge. </dd>
2. Of or pertaining to sound, as in sonic amplifier. </dd>
In sense 2, acoustic is preferred to sonic. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use