Entry 1 sense Webster, 1913 Peroration · Per·o·ra·tion · IPA /pɛɹəˈɹeɪʃən/ 01 n. The concluding part of an oration; especially, a final summing up and enforcement of an argument. 1. The concluding part of an oration; especially, a final summing up and enforcement of an argument.(Rhet.)