Nitrite /(?)/

Ni·trite

Nitrite

n.
  1. A salt or ester of nitrous acid; a compound bearing the -NO2 radical. (Chem.)

Phrases & Compounds
Amyl nitrite
a yellow oily volatile liquid, used in medicine as a depressant and a vaso-dilator. Its inhalation produces an instantaneous flushing of the face.