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neper

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

Origin of neper

1920–25; after J. Neper; see Napier

Neper

[ney-per]
noun
  1. John. Napier, John.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for neper

Historical Examples

  • Which hint Neper taking, he desired him at his return to call upon him again.

    Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 8

    Various


British Dictionary definitions for neper

neper

noun
  1. a unit expressing the ratio of two quantities, esp amplitudes in telecommunications, equal to the natural logarithm of the ratio of the two quantitiesSymbol: Np, N
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Word Origin

C20: named after John Napier; the name was approved in 1928
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012