Webster's Revised Unabridged Dictionary · 1913

Np

Np , noun

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

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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