GNU Collaborative International Dictionary of English
Found one definition
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Np n. The chemical symbol for Neptunium, a transuranic element having atomic number 93.
Syn. -- Neptunium, atomic number 93.
[WordNet 1.5]
Np n. The chemical symbol for Neptunium, a transuranic element having atomic number 93.
Syn. -- Neptunium, atomic number 93.
[WordNet 1.5]