Source : Webster's Revised Unabridged Dictionary (1913)

Magniloquence \Mag*nil"o*quence\, n. [L. magniloquentia.]
   The quality of being magniloquent; pompous discourse;
   grandiloquence.

Source : WordNet®

magniloquence
     n : high flown style; excessive use of verbal ornamentation
         [syn: {grandiosity}, {grandiloquence}, {rhetoric}]