- pantaspherical coordinates
- paper
- paper break
- paper cassette
- paper feed
- paper holder
- paper length
- paper lift
- paper low
- paper origin
- paper platform
- paper release
- paper sensor
- paper support
- paper tape
- paper track
- paper tractor
- paper tray
- para-curve
- paraanalytic
- parabolic asymptote
- parabolic catenary
- parabolic extrapolation
- parabolic homology
- parabolic point
- parabolic projectivity
- parabolic spiral
- paraconvex group
- paraffin oil
- paragraph
- paragraph key
- paragraph Mark
- paralled coordinates
- parallel access
- parallel accumulator
- parallel algorithm
- parallel annotation
- parallel axiom
- parallel buffer
- parallel channel
- parallel computation
- parallel computer
- parallel connector
- parallel coordinates
- parallel coupling
- parallel device
- parallel displacement
- parallel element
- parallel feed
- parallel flow
- parallel interface
- parallel knob
- parallel knot
- parallel lines
- parallel links
- parallel modulation
- parallel multiplier
- parallel processor
- parallel programming
- parallel rectifier
- parallel scanning
- parallel sessions
- parallel transfer
- parallel translation
- parallel transmission
- paralleled circle
- parasite
- parasite static
- parasitic
- parasitic array
- parasitic circuit
- parastrophic matrix
- paratactic lines
- paratactic parallelism
- parent
- parent device
- parent directory
- parent environment
- parent field
- parent menu
- parent node
- parent population
- parent process
- parent record
- parent segment
- parent structure
- parent transaction
- parent window
- parent-entry
- parentheses
- parenthesize
- parity bit
- parity check
- parity checking
- parity flag
- parity line
- parity track
- parking brake
- parking effort
- part