definition of
n

[1] #1 n n. [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. wn

[2] #2 n n. [north, due north, northward, N] the cardinal compass point that is at 0 or 360 degrees. wn

[3] #3 n n. [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. wn

[4] #4 n n. [normality, N] (of a solution) concentration expressed in gram equivalents of solute per liter. wn

[5] #5 n n. [N] the 14th letter of the Roman alphabet. wn