dB

Acronym for Decibels

dBA

A unit of measure for decibels, the measure of sound intensity or pressure named after Alexander Graham Bell. It is a logarithmic measurement; every 3dB increase represents a doubling of the sound pressure. The A in dBA indicates that the measurement was taken with an A-weighted scale; sound pressure varies across the audible spectrum, and the A-weighted scale approximates the human ear's sensitivity to various frequencies.

DBI

Acronym for De Danske Bilimport rer" (Denmark)

Dbl

Abbreviation for double, as in dbl.-wide rear wheels.

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