noun
1. : the difference between the actual pressure at any point in a sound field at any instant and the average pressure at that point — compare acoustic radiation pressure
2. : the amplitude of the sound pressure
noun
1. : the difference between the actual pressure at any point in a sound field at any instant and the average pressure at that point — compare acoustic radiation pressure
2. : the amplitude of the sound pressure
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012