nitrous /ˈnaɪtɹəs/adjective 4noun 2 adjective4 •Of, relating to, or derived from nitrogen, especially in which the valence of the nitrogen is lower than that of a corresponding nitric species.In fact, nitric oxide (not to be confused with nitrous oxide, or laughing gas) is one of our primary signalling molecules. — 2019 •Of or relating to nitrous acid or its derivatives. •(historical) Pertaining to or composed of nitre; having the properties of nitre, bitter.Whate'er the wintry Frost Nitrous prepar'd; the various-blossom'd Spring Put in white Promise forth; and Summer-Suns Concocted strong, rush boundless now to View […]. — 1749 •Having a sharp odor like ammonia or nitric acid. noun2 •(informal) Nitrous oxide. •(informal) The system in some racing vehicles which pumps nitrous oxide into the engine to improve performance.When a shot this big is being run, it will also be necessary to pull 6-10 degrees of timing out when the nitrous is being run. — 2002
