decibel Syllabification: (dec·i·bel)Pronunciation: /ˈdesəˌbel, -bəl/ (abbreviation: dB)Translate decibel | into German | into Italian | into Spanish Definition of decibel noun a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale. (in general use) a degree of loudness:his voice went up several decibelsOrigin: early 20th century: from deci- 'ten' + bel (the unit being one tenth of a bel)decibel in other Oxford dictionaries Definition of decibel in the British & World English dictionary
