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. : Np

neper

/ ˈneɪpə; ˈniː- /

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 quantities NpN

Word History and Origins

Origin of neper¹

First recorded in 1920–25; after J. Neper; John Napier

Word History and Origins

Origin of neper¹

C20: named after John Napier ; the name was approved in 1928

Example Sentences

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

From Project Gutenberg