Source : Webster's Revised Unabridged Dictionary (1913)

Fulmination \Ful"mi*na`tion\, n. [L. fulminatio a darting of
   lightning: cf. F. fulmination.]
   1. The act of fulminating or exploding; detonation.

   2. The act of thundering forth threats or censures, as with
      authority.

   3. That which is fulminated or thundered forth; vehement
      menace or censure.

            The fulminations from the Vatican were turned into
            ridicule.                             --Ayliffe.

Source : WordNet®

fulmination
     n 1: thunderous verbal attack [syn: {diatribe}]
     2: the act of exploding with noise and violence; "his
        fulminations frightened the horses"