Definition of Decibel

1. Noun. A logarithmic unit of sound intensity; 10 times the logarithm of the ratio of the sound intensity to some reference intensity.

Exact synonyms: Db
Generic synonyms: Sound Unit



Definition of Decibel

1. Noun. A common measure of sound intensity that is one tenth of a bel on the logarithmic intensity scale. It is defined as dB = 10 * log10(P 1/P 2), where P1 and P2 are the relative powers of the sound. ¹

¹ Source: wiktionary.com

Definition of Decibel

1. a unit of sound intensity [n -S]

Medical Definition of Decibel

1. One-tenth of a bel; unit for expressing the relative loudness of sound on a logarithmic scale. Origin: L. Decimus, tenth, + bel (05 Mar 2000)

Lexicographical Neighbors of Decibel

dechristianizes
dechristianizing
dechunk
dechunked
dechunking
dechunks
deci-
deciamp
deciampere
deciamperes
deciamps
deciare
deciares
deciban
decibans
decibel (current term)
decibels
decidabilities
decidability
decidable
decide
decided
decidedly
decidedness
decidednesses
decidement
decidence
decider
deciders
decides

Literary usage of Decibel

Below you will find example usage of this term as found in modern and/or classical literature:

1. Roadside Noise Abatement by OECD Staff (1995)
"The noise generated by road and rail vehicles is measured in "A" decibel units ... Addition of decibel measurements Sound units of measurement are more ..."

2. Measurements for Competitiveness in Electronics (1994)
"It is more difficult to attain high accuracy for system measurements where the goal of ±1 decibel is very ambitious. Because so many electronic systems are ..."

3. Vibrations and Waves by Benjamin Crowell (2002)
"Although a detailed discussion of the decibel scale is not relevant here, the basic point to note about the decibel scale is that it is logarithmic. ..."

4. Noise and Military Service: Implications for Hearing Loss and Tinnitus by Larry Humes, Lois Mary Joellenbeck, Jane Durch (2006)
"One model that has been considered is simple decibel additiv- ity of the hearing levels associated with aging and noise exposure, ..."

5. National Health and Safety Performance Standards: Guidelines for Out-Of-Home by DIANE Publishing Company (1996)
"decibel—The unit of measure of the loudness of sounds; one decibel is the lowest ... The decibel level is the number of decibels of noise perceived or ..."

6. Handbook of Severe Disability: A Text for Rehabilitation Counselors, Other edited by Walter C. Stolov, Michael R. Clowers (2000)
"On the decibel scale of the audiogram, zero represents normal hearing, ie, ... Larger numbers on the decibel scale mean more power is needed to cross the ..."

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