成胚区：内细胞群，同inner cell mass- photodermatitis
- photodermatosis
- photodisruption
- photodromy
- photodynamic
- photodynamics
- photodynesis
- photodynia
- photodysphoria
- photoelectric
- photoelectron
- photoelement
- photoerythema
- photoesthetic
- photofluorogram
- photofluorography
- photofluoroscope
- photogastroscope
- photogene
- photogenic
- photogram
- photography
- photohalide
- photohematachometer
- photohenric