- polarization mismatch
- polarization tilt
- polarization vector
- polarizer
- pole route
- political subdivision
- polling key
- polling system
- polygonal function
- polynomial filter
- polyrod antenna
- polysilicon gate
- pop-up
- population inversion
- port operations
- port sharing
- port
- port station
- portable receiver
- position operand
- Positive correlation
- positive direction
- positive feedback
- positive justification
- post mark
- postaccelerator CRT
- potential difference
- polyatomic molecule
- polycrystalline silicon
- polyharmonic
- polysilion layer
- pool
- potted capacitor
- power bandwidth
- power blockage
- power combiner
- power dispersal
- power failure
- Power function
- power module
- power oscillator
- power room
- power series
- power spectrum
- power supply
- power transistor
- pre-financing
- pre-selection
- preageing
- preaging
- preamplification
- popolarity reversal
- population statistic
- portable service
- positional navigation
- positive display
- possession
- post adjustment
- potential divider
- power again
- power antenna
- power block
- posigrade rocket
- positional parameter
- positive emission
- positive response
- positive wave
- postal order
- postgraduate
- postprocessing
- potential well
- power beam
- power control
- power detection
- power diode
- power dissipation
- power indicator
- power plant
- power restart
- power sink
- power switch
- power thyistor
- preamp
- precedence
- precipitated particles
- predetermined threshold
- predictable interference
- prediction analysis
- prediction interval
- prefiltering
- prefix-34 call
- preformed fiber
- preformed fibre
- pregion
- prelaunch checkout
- premixer
- prescaler
- preset parameter
- press button
- pressure suit