Meaning of nitrogen tetroxide

ni'trogen tetrox'ide

Pronunciation: [key]
— Chem. Chem.
  1. a poisonous compound, NO, occurring as a colorless, water-soluble solid or liquid, dissociating into NO: used chiefly as an oxidizer, esp. in rocket fuels, as a nitrating agent, and as an intermediate in the manufacture of nitric acid.
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