Webster's 1828 Dictionary
FULMINIC
a.Fulminic acid, in chimistry, is a peculiar acid contained in fulminating silver.
Webster's 1913 Dictionary
FULMINIC
Ful *min "ic, a. Etym: [Cf. F. fulminique.]
Defn: 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.
New American Oxford Dictionary
fulminic acid
ful min ic ac id |fo͝olˈminik, fəl -fəlˌmɪnɪk ˈæsəd | ▶noun Chemistry a very unstable acid isomeric with cyanic acid. [Chem. formula: HONC. ] ORIGIN early 19th cent.: fulminic from Latin fulmen, fulmin- ‘lightning ’ + -ic .
Oxford Dictionary
fulminic acid
fulminic acid |fʌlˈmɪnɪk, fʊl -| ▶noun [ mass noun ] Chemistry a very unstable acid isomeric with cyanic acid. ●Chem. formula: HONC. ORIGIN early 19th cent.: fulminic from Latin fulmen, fulmin- ‘lightning ’ + -ic .
The Wordsmith Dictionary