(PETRI) The name under which the Pseudo-Clementine writings are quoted by Epiphanius, Jerome, and the "Philocalia". See CLEMENTINES.
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Obstat, Nihil. Lafort, Remy, Censor. Entry for 'Periodi'. The Catholic Encyclopedia. https://www.studylight.org/encyclopedias/eng/tce/p/periodi.html. Robert Appleton Company. New York. 1914.