| Abbreviation | Definition |
|---|---|
| PT | Power Test |
| PTAB | Project Technical Advisory Board |
| PTAC | Packaged Terminal Air Conditioner |
| PTB | Passive Treble and Bass |
| PTC | Parallel Test Component |
| PTC | Pre-process Treatment Chamber |
| PTE | Potential To Emit .... |
| PTFE | PolyTetraFluorEthylene (teflon) |
| PTH | Plated Through Hole |
| PTIS | Photo Thermal Ionization Spectroscopy |
| PTM | Programmable Timer Module |
| PTO | Permeability Tuned Oscillator |
| PTP | Peak-To-Peak |
| PTP | Peer To Peer |
| PTP | Programmed Turn Phase |
| PTPX | Prime-Time PX |
| PTR | Parabolic Trough Receiver |
| PTS | Potential Trouble Source |
| PTZ | Pan Tilt Zoom |
| PUES | Power Unit for Electric Systems |