speed of sound
- noun the speed at which sound waves travel through a medium
- The speed at which sound (acoustic) waves travel through a specific medium. This is influenced by conditions such as the temperature, pressure, and density of the medium of propagation. In dry air, for example, at 0 °C, and at one atmosphere pressure, sound travels at approximately 331.6 meters per second, while in copper sound travels at approximately 3,360 meters per second. Also known as sonic speed, or acoustic speed.
- synonym sonic speed
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