| Polycarp Pengo | Polycarp Pengo |
| Polycentridae | Polycentridae |
| polychlordibenzo-p-dioxin | policlorodibenzo-p-diossina |
| polychlorinated biphenyl | bifenili policlorurati |
| Polychlorinated dibenzodioxins | Diossina |
| polychlorinated dibenzofuran | dibenzofurani policlorurati |
| polychlorinated terphenyl | terfenili policlorurati |
| Polychoron | Policoro |
| Polycrystalline silicon | Silicio policristallino |
| polycyclic aromatic hydrocarbon | idrocarburi aromatici policiclici |
| polycyclic hydrocarbon | idrocarburi policiclici |
| Polydeuces | Polluce |
| Polydimethylsiloxane | Polidimetilsilossano |
| Polydor Records | Polydor Records |
| Polyeidos | Polido |
| polyester | poliestere |
| Polyether | Polietere |
| polyethylene | polietilene |
| Polyethylene glycol | Glicole polietilenico |
| polyethylene terephtalate | polietilentereftalato |
| Polyethylene terephthalate | Polietilene tereftalato |
| Polygala | Polygala |
| polygamist | poligamo |
| Polygamma function | Funzione poligamma |
| polygamous | poligamo |
| polygamy | poligamia |
| polyglot | multilingue |
| Polyglycolide | Acido poliglicolico |
| Polygnotus | Polignoto di Taso |
| polygon | poligono |
| Polygonaceae | Polygonaceae |
| Polygonal number | Numero poligonale |
| Polygonales | Polygonales |
| Polygonatum multiflorum | Polygonatum multiflorum |
| Polygonatum odoratum | Polygonatum odoratum |
| Polygonatum verticillatum | Polygonatum verticillatum |
| Polygonum | Poligono |
| polygraphic | poligrafico |
| Polygyros | Polygyros |
| Polyhedral compound | Poliedro composto |
| Polyhedron | Poliedro |
| Polyhymnia | Polimnia |
| Polykleitos | Policleto |
| Polykleitos the Younger | Policleto |
| Polylogarithm | Polilogaritmo |
| polymer | polimero |
| Polymer chemistry | Chimica dei polimeri e delle macromolecole |
| Polymerase chain reaction | Reazione a catena della polimerasi |
| polymeric | polimerico |
| polymerisation | polimerizzazione |
| polymerization | polimerizzazione |
| polymorphic | polimorfo |
| polymorphous | polimorfo |
| Polymorphs | Polimorfismo |
| Polynesia | Polinesia |
| Polynesian | polinesiano |
| Polynesian Rat | Rattus exulans |
| polyneuritis | polineurite |
| Polynices | Polinice |
| Polynomal | Polinomio |
| Polynomial | Polinomio |
| Polynomial long division | Divisione dei polinomi |
| Polynomial remainder theorem | Teorema del resto |
| Polynomial ring | Anello dei polinomi |
| Polynomial sequence | Sequenza polinomiale |
| Polyolefin | Poliolefina |
| Polyoxymethylene | Paraformaldeide |
| polyp | polipo |
| polypeptide | polipeptide |
| Polyperchon | Poliperconte |
| Polyphaga | Polyphaga |
| Polyphagia | Polifagia |
| Polyphemus | Polifemo |
| Polyphenol | Polifenolo |
| Polyphenols | Vino |
| polyphony | polifonia |
| Polyphyly | Polifiletico |
| Polyplectron | Polyplectron |
| Polyplectron malacense | Polyplectron malacense |
| Polypodiaceae | Pteridophyta |
| Polypodiophyta | Pteridophyta |
| Polypodium vulgare | Polypodium vulgare |
| Polyporaceae | Polyporaceae |
| Polyporales | Polyporales |
| Polyporus squamosus | Polyporus squamosus |
| polypus | polipo |
| Polypyrrole | Polipirrolo |
| Polyrhythm | Poliritmia |
| Polyribosome | Polisoma |
| Polysome | Polisoma |
| Polysomnography | Polisonnografia |
| Polystichum aculeatum | Polystichum aculeatum |
| polystyrene | polistirene |
| polysyllabic | plurisillabo |
| polysyllable | polisillabo |
| Polysyllogism | Sorite |
| polytechnic | politecnico |
| polytechnic school | politecnico |
| Polytechnic University of the Philippines | Università politecnica delle Filippine |
| Polytechnic University of Turin | Politecnico di Torino |
| polytheism | politeismo |
| polytheistic | politeistico |
| Polytheistic reconstructionism | Ricostruzionismo pagano |
| polythene | politene |
| Polythiophene | Politiofene |
| Polytope | Politopo |
| Polytrope | Politropi |
| Polytropic process | Trasformazione politropica |
| polyunsaturated | polinsaturo |
| Polyurea | Poliurea |
| polyurethane | poliuretano |
| polyuria | poliuria |
| Polyus | Polyus |
| polyvalency | polivalenza |
| polyvalent | polivalente |
| polyvinyl | polivinile |
| Polyvinyl alcohol | Alcool polivinilico |
| polyvinyl chloride | cloruro di polivinile |
| Polyvinylidene fluoride | Polivinildenfluoruro |
| Polyxena | Polissena |
| Polzela | Polzela |
| Pom Poko | Heisei tanuki gassen Ponpoko |
| Pomace brandy | Marco |
| Pomacentridae | Pomacentridae |
| pomade | pomata |
| Pomaks | Pomacchi |
| Pomare IV | Pomare IV |
| Pomarkku | Pomarkku |
| pomatum | pomata |
| Pombia | Pombia |
| pomegranate | melagrana |
| Pomelo | Citrus maxima |
| Pomerania | Pomerania |
| Pomeranian | Pomerania |
| Pomeranian Voivodeship | Voivodato di Pomerania |
| Pomerelia | Pomerelia |
