Definition of Nitrogen 1. 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 Noun Synonyms for word "nitrogen" Semanticaly linked words with "nitrogen" Hyponims for word "nitrogen" Lexical Analysis for "nitrogen" nitrogenous of or relating to or containing nitrogen nitrify treat with nitrogen or a nitrogen compound nitrogenize treat with nitrogen or a nitrogen compound etymology dinitrogen etymology nitrogenase etymology nitrogenate etymology nitrogenless etymology nitrogenlike etymology nonnitrogen etymology polynitrogen etymology radionitrogen etymology najtroġin [Maltese] etymology nitrogen etymology نيتروݢن etymologically related niter etymologically related nitrate etymologically related nitre etymologically related nitric etymologically related nitride etymologically related nitrification etymologically related nitro- etymological origin of nitrogène [French] is derived from dinitrogen is derived from nitragin is derived from nitrogen cycle is derived from nitrogen dioxide is derived from nitrogen fixation is derived from nitrogen fixer is derived from nitrogen fixing is derived from nitrogen monoxide is derived from nitrogen mustard is derived from nitrogen narcosis is derived from nitrogen oxide is derived from nitrogen tetroxide is derived from nitrogen trichloride is derived from nitrogen trifluoride is derived from nitrogen triiodide is derived from nitrogen-13 is derived from nitrogen-14 is derived from nitrogen-15 is derived from nitrogenase is derived from nitrogenate is derived from nitrogenic is derived from nitrogeniferous is derived from nitrogenise is derived from nitrogenize is derived from nitrogenous is derived from nitrogens is derived from nitrophilous is derived from nitrox