N
       n 1: (of a solution) concentration expressed in gram equivalents
            of solute per liter [syn: normality]
       2: 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 [syn: nitrogen, atomic number 7]
       3: the cardinal compass point that is at 0 or 360 degrees [syn:
           north, due north]
       4: 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 [syn: newton]
       5: the 14th letter of the Roman alphabet