desibeli
A common measure of intensity ratio (e.g. for sound) that is one tenth of a bel on the logarithmic intensity scale. It is defined as dB = 10 log10(''P''1 / ''P''2), where ''P''1 and ''P''2 are the relative intensities.
(l) (gloss)
(l)
(l) (gl)
(alternative form of)