[1] : The Collaborative International Dictionary of English v.0.48

nitrite \ni"trite\, n. cf. f. nitrite. see niter. chem.
   a salt or ester of nitrous acid; a compound bearing the
   -no2 radical.
   1913 webster +pjc

   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.
      1913 webster
see also:
niter -no2 amyl nitrite 

[2] : WordNet (r) 2.0

nitrite
     n : the radical -no2 or any compound containing it such as a
         salt or ester of nitrous acid

Nitrite >> N Words
Nitrite, definition of term: Nitrite
nitrite_pag1.html

Sodium Nitrite >> S Words
Sodium Nitrite, definition of term: Sodium Nitrite
sodium+nitrite_pag1.html

Amyl Nitrite >> A Words
Amyl Nitrite, definition of term: Amyl Nitrite
amyl+nitrite_pag1.html