a long speech characterized by lofty and often pompous language.
2.
Rhetoric. the concluding part of a speech or discourse, in which the speaker or writer recapitulates the principal points and urges them with greater earnestness and force.
Origin: 1400–50;late Middle English < Latinperōrātiōn- (stem of perōrātiō) the closing of a speech. See perorate, -ion
c.1440, from L. perorationem (nom. peroratio) "the ending of a speech or argument of a case," from peroratus, pp. of perorare "argue a case to the end, bring a speech to a close," from per- "to the end" + orare "to speak, plead" (see orator).