【化】 雷酸
【医】 雷酸, 异氰酸

[ noun ]
(CNOH) an unstable acid occurring mainly in the form of explosive salts and esters that is isomeric with cyanic acid
<noun.substance>

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.