原壁菌属：一属普遍存在的酵母样生物，常被认为是无色素藻类，细胞呈球形、卵圆形或椭圆形，有数个厚壁的似亲孢子。魏氏原壁菌(P.wickerhamii)和左氏原壁菌(P.zopfii)同人类或动物感染有关。见protothecosis- perimysial
- perimysiitis
- perimysitis
- perimysium
- perinatal
- perinatologist
- perinatology
- perineal
- perineocele
- perineometer
- perineoplasty
- perineorrhaphy
- perineoscrotal
- perineotomy
- perineovaginal
- perineovaginorectal
- perineovulvar
- perinephrial
- perinephric
- perinephritic
- perinephritis
- perinephrium
- perineum
- perineural
- perineurial