Source : Webster's Revised Unabridged Dictionary (1913)

Fulmiaic \Ful*mia"ic\, a. [Cf. F. fulminique.]
   Pertaining to fulmination; detonating; specifically (Chem.),
   pertaining to, derived from, or denoting, an acid, so called;
   as, fulminic acid.

   {Fulminic acid} (Chem.), a complex acid, {H2C2N2O2}, isomeric
      with cyanic and cyanuric acids, and not known in the free
      state, but forming a large class of highly explosive
      salts, the fulminates. Of these, mercuric fulminate, the
      most common, is used, mixed with niter, to fill percussion
      caps, charge cartridges, etc. -- Fulminic acid is made by
      the action of nitric acid on alcohol.

Source : WordNet®

fulminic acid
     n : (CNOH) an unstable acid occurring mainly in the form of
         explosive salts and esters that is isomeric with cyanic
         acid