The Collaborative International Dictionary of English v.0.48:

Np \Np\ n.
   The chemical symbol for Neptunium, a transuranic element
   having atomic number 93.

   Syn: Neptunium, atomic number 93.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Np
    n 1: a radioactive transuranic metallic element; found in trace
         amounts in uranium ores; a by-product of the production of
         plutonium [syn: neptunium, Np, atomic number 93]
    2: a registered nurse who has received special training and can
       perform many of the duties of a physician [syn: nurse
       practitioner, NP, nurse clinician]

The Free On-line Dictionary of Computing (19 January 2023):

NP

    nondeterministic polynomial time.

   [Jargon File]


The Free On-line Dictionary of Computing (19 January 2023):

np

    The country code for Nepal.

   (1999-01-27)