犬似囊尾蚴：犬复孔绦虫(Dipylidium caninum)之似囊尾蚴首次在犬啮毛虱(Trichodectes)体腔内发现时，曾误冠以此名- -petal
- petalobacteria
- petechia
- petechiae
- petechial
- Petersen's bag
- Peters' ovum
- pethidine hydrochloride
- petiolate, petiolated
- petiole
- petioled
- petiolus
- petit mal
- Petit's canal, sinus
- Petit's hernia,ligament,triangle
- Petit's law
- petrichloral
- Petri dish, plate,test(reaction)
- petrifaction
- petroccipital
- petrolate
- petrolatoma
- petrolatum
- petroleum
- petrolization