- A bicycle built for two or more people sitting one behind the other.协力自行车：彼此排成纵行坐骑的两人用或多人用自行车
- polysynthetic
- polysynthetical
- polytechnic
- polytechnical
- Polytechnic University
- Polytechnic University-Long Island Campus
- polytene
- polytetrafluoroethylene
- polytheism
- polythene
- polythene
- polythenes
- polytocous
- polytonality
- polytrophic
- polytypic
- polyunsaturated
- polyurethan
- polyurethane
- polyuria
- polyurias
- polyvalent
- polyvalents
- polyvinyl
- polyvinyl chloride