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NP

1.
noun phrase.

Np

Physics.
1.
neper; nepers.

Np

Symbol, Chemistry
1.

N.P.

1.
new paragraph.
2.
nisi prius.
3.
no protest.
4.
notary public.

n.p.

1.
net proceeds.
2.
new paragraph.
3.
nisi prius.
4.
no pagination.
5.
no place of publication.
6.
no protest.
7.
notary public.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for NP

np1

abbreviation
1.
(printing) new paragraph
2.
(law) nisi prius
3.
no place of publication

np2

abbreviation
1.
Nepal

Np

symbol
1.
neper
Chemical symbol
2.
neptunium

NP

abbreviation
1.
neuropsychiatric
2.
neuropsychiatry
3.
Also np. Notary Public
4.
noun phrase
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
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NP in Medicine

Np
The symbol for the element neptunium.

NP abbr.
nurse practitioner neuropsychiatry

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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NP in Science
Np  
The symbol for neptunium.
neptunium
  (něp-t'nē-əm)   
Symbol Np
A silvery, radioactive metallic element of the actinide series. It occurs naturally in minute amounts in uranium ores and is produced artificially as a byproduct of plutonium production. Its longest-lived isotope is Np 237 with a half-life of 2.1 million years. Atomic number 93. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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NP in Technology

networking
The country code for Nepal.
(1999-01-27)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Related Abbreviations for NP

np

no problem

Np

neptunium

NP

  1. neuropsychiatry
  2. notary public
  3. not palpable
  4. noun phrase
  5. number of pitches
  6. nurse practitioner

n.p.

  1. no pagination
  2. no place [of publication]
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Article for NP

Np

radioactive chemical element of the actinoid series of the periodic table, first transuranium element to be artificially produced, atomic number 93. Though traces of neptunium have subsequently been found in nature, where it is not primeval but produced by neutron-induced transmutation reactions in uranium ores, Edwin M. McMillan and Philip H. Abelson first found neptunium in 1940 after uranium had been bombarded by neutrons from the cyclotron at Berkeley, Calif. Neptunium has been produced in weighable amounts in breeder reactors as a by-product of plutonium production from uranium-238 (about one part neptunium is produced for every 1,000 parts plutonium). All neptunium isotopes are radioactive; the stablest is neptunium-237, with a half-life of 2,140,000 years, and among the most unstable is neptunium-232, with a half-life of 13 minutes.

Learn more about Np with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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