IMPERFECTIFS IMPERFECTION IMPERFECTIVE PERFECTIBLES PERFECTIONNA PERFECTIONNE PERFORASSENT PERFORASSIEZ PERFORATEURS PERFORATIONS PERFORATRICE PERFORERIONS PERFORMANCES PERFORMANTES PERFORMATIFS PERFORMATIVE PERFUSASSENT PERFUSASSIEZ PERFUSERIONS SUPERFICIELS SUPERFINÎMES SUPERFINIRAI SUPERFINIRAS SUPERFINIREZ SUPERFINISSE SUPERFINÎTES SUPERFLUIDES SUPERFLUITÉS