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antilogarithm in mathematics, the number that corresponds to a particular logarithm.
dB abbreviation of "decibel," or "decibels," a unit indicating the level of loudness of sound, relative to a standard level, or indicating relative differences in power levels of electrical signals, equal to ten times the common logarithm of the ratio of the two levels.
decibel a unit indicating the level of loudness of sound, relative to a standard level, or indicating relative differences in power levels of electrical signals, equal to ten times the common logarithm of the ratio of the two levels. (abbr.: dB)
log2 logarithm.
mantissa the decimal portion of a common logarithm.