- phosphorylase
- phosphorylase
- phosphorylase phosphatase
- photino
- photino
- photo
- photoactivated localization microscopy
- photo book
- photocell
- photochromic lens
- photochromism
- photochromism
- photochromy
- photo-coupler
- photodetector
- photodiode
- photodiode arrays
- photo-dynamic therapy
- photoelectrochemical cell
- photo essay
- photo-eye
- photo frame
- photogenic
- photogenie
- photogram