périostose, n.f., (med.) periostitis.
péripatéticien, -ne (-ci-in, -è-n), n. and adj., Peripatetic.
péripatétisme, n.m., Peripateticism.
péripétie (-pé-ci), n.f., sudden turn of fortune; revolution, vicissitude; (thea.) catastrophe, event, incident.
périphérie, n.f., (geom.) periphery.
périphrase, n.f., periphrasis, periphrase, circumlocution.
périphraser, v.n., to periphrase, to talk in a roundabout way, to express by circumlocution.
périple, n.m., (ancient geog.) periplus.
péripneumonie, n.f., (med.) peripneumonia, peripneumony.
périptère, n.m. and adj., (arch.) periptery; peripteral.