desibel

Etymology
Affixed, from , from.

Noun

 * : A common measure of sound intensity ratio that is one tenth of a bel on the logarithmic intensity scale. It is defined as dB = 10 log10(P1 / P2), where P1 and P2 are the relative powers of the sound.

Etymology
Borrowed from.

Noun

 * 1) decibel