polyhedron

n (pl ~s or -hedra / -5hi:drE; -`hidrE/) solid figure with many (usu seven or more) faces 多面体（通常指至少有七面）.

pollute, pollution, pollyanna, polo, polo neck, polonaise, poltergeist, poly, poly-, polyandrous, polyandry, polyanthus, polyester, polyethylene, polygamist, polygamous, polygamy, polyglot, polygon, polygonal, polymath, polymer, polymorphous, Polynesian, polyp, polyphonic, polyphony, polypous, polystyrene, polysyllabic, polysyllable, polytechnic, polytheism, polytheistic, polythene, polyunsaturated, polyurethane, pom, pom-pom, pomander,