Physics.
the square root of the mean of the squares of the sound pressures of a sound wave, measured at a given point over a certain time interval. Also called sound pressure .
Physics.
the square root of the mean of the squares of the sound pressures of a sound wave, measured at a given point over a certain time interval. Also called sound pressure .
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012