Entry 1 sense Webster, 1913 Postprandial · Post·pran·di·al · IPA /ˌpoʊs(t)ˈpɹæn.di.əl/ 01 a. Happening, or done, after dinner; after-dinner; as, postprandial speeches. 1. Happening, or done, after dinner; after-dinner; as, postprandial speeches.