neper
Also found in: Dictionary, Thesaurus, Financial, Acronyms, Encyclopedia, Wikipedia.
ne·per (Np),
(ne'pĕr),A unit for comparing the magnitude of two powers, usually in electricity or acoustics; it is one half of the natural logarithm of the ratio of the two powers.
Synonym(s): napier
[fr. neperus, latinized form of (John) Napier]
Farlex Partner Medical Dictionary © Farlex 2012
ne·per
(nē'pĕr)A unit for comparing the magnitude of two powers, usually in electricity or acoustics; it is one half of the natural logarithm of the ratio of the two powers.
[fr. neperus, latinized form of (John) Napier]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
neper
(nē′pĕr, nā′) [John Napier, Scot. mathematician, 1550–1617]
, Np
A unit of measure denoting the ratio of two amplitudes. It is similar to the decibel but is expressed as a natural logarithm instead of a logarithm of the base 10. 1 Np = 8.687 dB.
Medical Dictionary, © 2009 Farlex and Partners