nitrogen_oxide
1. [ noun ] (chemistry) any of several oxides of nitrogen formed by the action of nitric acid on oxidizable materials; present in car exhausts
Related terms: oxide pollutant
Similar spelling:   nitrogen_dioxide
  nitrous_oxide
  nitrogenize
  nitrogenise
  nitrogenase
  nitrogen_cycle
  nitric_oxide
  nitrogen_mustard
  nitrogen_balance
  nitrogen_narcosis
  nitrogen_fixation
  nitrogenous
  nitroglycerin