nitrogen
- Noun. (uncountable) A chemical element (''symbol'' N) with an atomic number of 7 and atomic weight of 14.0067.
- Noun. (uncountable) Molecular nitrogen (N2), a colorless, odorless gas at room temperature.
- Noun. (countable) A specific nitrogen within a chemical formula, or a specific isotope of nitrogen.
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This entry was last updated on RefTopia from its source on 3/20/2012.