popc - prim
- popcorn noise
- populate
- populated
- population counting
- POR
- porcelain insulator
- porch
- porous anode
- porous cathode
- port
- port operations service
- port radar
- portability
- portable
- portable inspection lamp
- portable maintenance console
- portable maintenance kit
- portable radar
- portable routine tester
- portable television receiver
- portrait format
- POS
- position
- position and homing indicator
- positional notation
- positional signal
- positioning
- positioning block
- positioning function
- positive
- positive amplitude modulation
- positive column
- positive control
- positive correlation
- positive electron
- positive feedback
- positive film
- positive justification
- positive logic
- positive pole
