(organic chemistry) Two nitro groups in a chemical compound

(chemistry) containing two nitro groups (-NO₂)

(inorganic chemistry) nitrous oxide

(inorganic chemistry) The unstable binary compound N₂O₅; a strong oxidizing agent.

(inorganic chemistry) nitrous oxide

(biochemistry) One of two enzymes which, together with ATP, catalyze the reduction of molecular nitrogen into ammonia.

(biochemistry) Either of two enzymes which, together with ATP, catalyze the reduction of molecular nitrogen into ammonia.

(biochemistry) dinitrogenase reductase

(inorganic chemistry) A binary compound of nitrogen and oxygen, N₂O₄, that exists in equilibrium with nitrogen dioxide NO₂; it is a powerful oxidizing agent and is used in rocket propellants.

(inorganic chemistry) The binary compound of nitrogen and oxygen N₂O₃, a pale blue liquid that reacts with water to form nitrous acid.