peri - plat
- perigee
- perimeter
- perimeter estimator
- period (.) delimiter
- period (.) delimiter
- period ends
- period length
- period of validity
- periodic
- periodic boundary condition
- periodic component
- periodic composite
- periodic control
- periodic convolution
- periodic damping
- periodic dumping
- periodic execution
- periodic interrupt
- periodic job
- periodic law
- periodic maintenance
- periodic measurenment
- periodic multistep method
- periodic porous media
- periodic pulse train
- periodic quartic spline
- periodic random process
- periodic regulator
- periodic replacement
- periodic report
- periodic sampling
- periodic sequence
- periodic solution
- periodic state
- periodic substructure
- periodic test
- periodical
- periodicity
- periodization
- periodogram
