decibel

• Unidade logarítmica usada para medir a intensidade do som, igual a dez vezes o logaritmo da razão entre uma intensidade sonora e uma intensidade de referência.

A logarithmic unit used to measure the intensity of sound, equal to ten times the logarithm of the ratio of a given sound intensity to a reference intensity.

1. Unit of sound intensityB2formalscientific

   A logarithmic unit used to measure the intensity or power level of sound, relative to a reference level.

   Decibel

   • The noise level reached 120 decibels at the concert.
   • A whisper is about 30 decibels, while a jet engine is around 140 decibels.
   • Prolonged exposure to sounds above 85 decibels can damage hearing.