neper

neper

[nee-per, ney-]
noun Physics.
the unit used to express the ratio of two amplitudes as a natural logarithm: equal to 8.68 dB. Abbreviation: Np
Also, napier.


Origin:
1920–25; after J. Neper; see Napier

Dictionary.com Unabridged

Neper

[ney-per]
noun
John, Napier, John.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
neper (ˈneɪpə, ˈniː-)
 
n
Np, N a unit expressing the ratio of two quantities, esp amplitudes in telecommunications, equal to the natural logarithm of the ratio of the two quantities
 
[C20: named after John Napier; the name was approved in 1928]

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