A unit for expressing the relative intensity of sounds on a scale from zero for the average least perceptible sound to about 130 for the average level at which sound causes pain to humans.
DECIBEL (DES-UH-BULL)
Meaning of DECIBEL (DES-UH-BULL) in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012