Terms in alphabetical order

P (Permitted)

P44

Packer

Packet

Packet !

Packet Switched (PS) !

Packing rod

Pad character

PAI

Pair of wheels

PAL

Pantograph

Pantograph frame friction

Pantograph frame width

Pantograph rie-bar

Pantograph slipper

Parallel connection

Parallel mode !

Parallel motion head suspension

Paralleling point