Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • The symbol for the element neptunium.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Symbol for neptunium.
  • n. Symbol for neper.

from the GNU version of the Collaborative International Dictionary of English

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

from The Century Dictionary and Cyclopedia

  • n. An abbreviation of North Polar Distance.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium
  • n. a registered nurse who has received special training and can perform many of the duties of a physician

Etymologies

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