perigon perigonal perigone perigones perigonia perigonium perigons perigraph perigraphs perigynia
| perigynies perigynium perigynous perigyny perihelia perihelial (current term) perihelic perihelion perihelions perihelium
| perihematomal perihepatic perihepatitis periherm periherms perihernial perihilar perihypoglossal nuclei periinfarct perijejunitis
|