'Fulminic acid' definitions:

Definition of 'fulminic acid'

(from WordNet)
noun
(CNOH) an unstable acid occurring mainly in the form of explosive salts and esters that is isomeric with cyanic acid

Definition of 'Fulminic acid'

From: GCIDE
  • 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. [1913 Webster]
  • 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. [1913 Webster]