a. Chem. [f. L. fulmin (with sense derived from FULMINATE v.) + -IC.] In Fulminic acid C2H2N2O2, nitro-acetonitril, an acid (not yet isolated) forming explosive salts with some metals.
1825. Hamilton, Hand-bk. Terms, Fulminic Acid. in Chemistry, an acid capable of combining in different proportions, with different bases, and thus forming as many detonating salts.
1850. Daubeny, Atom. Th., vii. (ed. 2), 215. Cy 2 + oxygen 2 + Aq. 1 forms fulminic acid.
1864. H. Spencer, Biol., I. 8. The various fulminating salts are all formed by the union with metals, of a certain nitrogenous acid called fulminic acid.