noun
elastic wave
Technical term in physics and seismology for a wave that propagates through an elastic medium, such as seismic waves or ultrasonic waves.
地震によって発生する弾性波を観測する。
Observe the elastic waves generated by earthquakes.
Compound of 弾性 (elasticity) and 波 (wave). The exact historical derivation is uncertain; the term is a modern technical coinage.