Source : Webster's Revised Unabridged Dictionary (1913)

Peroration \Per`o*ra"tion\, n. [L. peroratio, fr. perorate,
   peroratum, to speak from beginning to end; per + orate to
   speak. See {Per-}, and {Oration}.] (Rhet.)
   The concluding part of an oration; especially, a final
   summing up and enforcement of an argument. --Burke.

Source : WordNet®

peroration
     n 1: a flowery and highly rhetorical oration
     2: (rhetoric) the concluding section of an oration; "he
        summarized his main points in his peroration"