Noun
- 1. neptunium, Np, atomic number 93, metallic element, metal
- usage: a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium
- 2. nurse practitioner, NP, nurse clinician, registered nurse, RN
- usage: a registered nurse who has received special training and can perform many of the duties of a physician
WordNet 3.0 Copyright © 2006 by Princeton University.
All rights reserved.Definition and meaning of np (Dictionary)