# neper

[nee-per, ney-]

- the unit used to express the ratio of two amplitudes as a natural logarithm: equal to 8.68 dB. Abbreviation: Np

Also napier.

## Origin of neper^{}

# Neper

[ney-per]

- John. Napier, John.

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.

# neper

- 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

## 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