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}]
Np \Np\ n. The chemical symbol for Neptunium, a transuranic element having atomic number 93. Syn: Neptunium, atomic number 93. [WordNet 1.5]
NP <complexity> {nondeterministic polynomial time}. [{Jargon File}]
np <networking> The {country code} for Nepal. (1999-01-27)
NP No Problem (telecommunication, Usenet, IRC)