pressure wave
Technical term used in physics and engineering to describe a wave that propagates through a medium as a result of pressure changes.
The pressure wave generated by the explosion shook the building.
The pressure wave produced by a supersonic aircraft is called a shock wave.
音波 (sound wave) is a pressure wave that is audible to the human ear. 圧力波 includes both audible and inaudible pressure fluctuations.
Compound of 圧力 (pressure) and 波 (wave). A straightforward technical term with no obscure historical derivation.