1. (noun)nitrogen, N, atomic number 7 a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues Synonyms: northward, nitrogen, newton, due north, north, normality, atomic number 7
3. (noun)newton, N a unit of force equal to the force that imparts an acceleration of 1 m/sec/sec to a mass of 1 kilogram; equal to 100,000 dynes Synonyms: northward, atomic number 7, newton, due north, north, normality, nitrogen