bel
bel
Definition
☆ bel (bel)
noun
Physics a unit used for measuring sound intensity, equal to 10 decibels: abbrev. B
Etymology: after Alexander Graham Bell
Bel¹
Definition
Bel (bāl)
Bel²
Definition
Bel
Belgium
bel (B)
Telecom Definition
In physics, a measure of comparative power ratio, or relative loudness. In other words, a unit of power ratio. The number of bels is the decimal logarithm of the power ratio, which is expressed mathematically as follows: B = log 10 (P 1 /P 2 ) where B = Bel, and P 1 and P 2 are power levels. One bel is equal to 10 decibels. The bel is named for Alexander Graham Bell, inventor of the telephone, among other things. See Bell, Alexander Graham; decibel; logarithm; and power.
bel
Usage Examples
Modifies a noun
- canto: He pays for rare bel canto works to be recorded on the Opera Rare label.
- opera: In 2003 Opera Rara celebrated 25 years of recording the rarest of 19th century bel canto operas.
- man: Girl is daughter of Bel man, that is not done in Warwar.
- repertoire: He first developed a reputation as a performer of Mozart and the bel canto repertoire.
- 966r: On the bike it was linked into the Bel 966R and gave a clear warning.
- paese: I must admit I don't normally associate the bel paese with that sound.
Noun used with modifier
