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- Dictionarydecibel/ˈdɛsɪb(ɛ)l/
noun
- 1. 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.
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The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B). It expresses the ratio of two values of a power or root-power quantity on a logarithmic scale. Two signals whose levels differ by one decibel have a power ratio of 10 1/10 (approximately 1.26) or root-power ratio of 10 1/20 (approximately 1.12).
The decibel (dB) is a unit that expresses the ratio of two values of a physical quantity, often power or intensity. One decibel is one-tenth of one bel, a unit named in honour of Alexander Graham Bell.
a unit for measuring the loudness of sound: The typical lawn mower makes about 90 decibels of noise. SMART Vocabulary: related words and phrases. Measuring & weighing. cost-of-living index. countable. gage. gravimetrically. hypsometric. measurement. non-quantifiable. non-quantitative. pace something off/out. planimetric. ponderable. proof. shortish
decibel (dB), unit for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative loudness of sounds. One decibel (0.1 bel) equals 10 times the common logarithm of the power ratio.
Sep 7, 2023 · Decibels (abbreviated dB) are the units used to measure the relative intensity of a sound. The decibel unit of measurement is a little odd because the human ear is incredibly sensitive. The human ear can hear everything from your fingertip brushing lightly over your skin to a loud jet engine.
The meaning of DECIBEL is a unit for expressing the ratio of two amounts of electric or acoustic signal power equal to 10 times the common logarithm of this ratio. How to use decibel in a sentence.
Decibel (Symbol: dB) is a logarithmic unit that indicates ratio or gain. Decibel is used to indicate the level of acoustic waves and electronic signals. The logarithmic scale can describe very big or very small numbers with shorter notation.
