| Acronym | Meaning |
![](file.png) | PTIS | Photothermal Ionization Spectroscopy |
![](file.png) | PTK | Protein Tyrosine Kinase |
![](file.png) | PTM | Perturbation Trajectory Method (in Gas-surface Collision Dynamics) |
![](file.png) | PTM | Posttranslational Modification |
![](file.png) | PTMG | Polytetramethylene Glycol |
![](file.png) | PTMT | Poly (tetramethylene Terephthalate) |
![](file.png) | PTNO | Perturbation Theory Natural Orbital |
![](file.png) | PTO | U.S. Patent And Trademark Office |
![](file.png) | PTP | Protein Tyrosine Phosphatase |
![](file.png) | PTR | Photothermal Radiometry |
![](file.png) | PTR | Proton Transfer Reaction |
![](file.png) | PTR-MS | Proton Transfer Reaction-mass Spectrometry |
![](file.png) | PTRI | Programmed Temperature Retention Index |
![](file.png) | PTS | Pressure Tuning Spectroscopy |
![](file.png) | PTS | Phosphotransferase System |
![](file.png) | PTS | Position-tagged Spectroscopy |
![](file.png) | PTS | Pressurized Thermal Shock |
![](file.png) | PTSA | Pressure And Temperature Swing Adsorption |
![](file.png) | PTSD | Post-traumatic Stress Disorder |
![](file.png) | PTSPGF | Perturbative-type Single-particle Green Function |
![](file.png) | PTV | Particle-tracking Velocimetry |
![](file.png) | PTV | Programmed Temp. Vaporizing |
![](file.png) | PTWI | Provisional Tolerable Weekly Intake |
![](file.png) | PTX | Pertussis Toxin |
![](file.png) | PUCHF | Perturbed Uncoupled Hartree-Fock |
![](file.png) | PUF | Polyurethane Foam |
![](file.png) | PUFA | Polyunsaturated Fatty Acid |
![](file.png) | PUHF | (spin)-projected Unrestricted Hartree-Fock |
![](file.png) | PUHFS | Projected Unrestricted-Hartree-Fock-Slater |
![](file.png) | PUMP | Projected Unrestricted Moeller-Plesset |
![](file.png) | PUMP | Pure (alpha-spin-state) Unrestricted Moeller-Plesset Nth-order (wave Function) |
![](file.png) | PURPA | Public Utility Regulatory Policy Act |
![](file.png) | PV-RR | Perturbational-variational-Rayleigh-Ritz (matrix Method In Mol. Calcns.) |
![](file.png) | PVA | Polyvinyl Alcohol |
![](file.png) | PVAC | Poly(vinyl Acetate) |
![](file.png) | PVAL | Polyvinyl Alcohol |
![](file.png) | PVB | Poly(vinyl Butyral) |
![](file.png) | PVB | Projected Valence Bond |
![](file.png) | PVB-CSF | Projected Valence Bond-configuration State Function |
![](file.png) | PVC | Pigment Volume Concentration |
![](file.png) | PVC | Polyvinyl Chloride |
![](file.png) | PVD | Physical Vapor Deposition |
![](file.png) | PVDC | Poly(vinylidene Dichloride) |
![](file.png) | PVDF | Polyvinylidene Difluoride |
![](file.png) | PVEC | Photovoltaic Energy Conversion |
![](file.png) | PVF | Poly(vinyl Fluoride) |
![](file.png) | PVFM | Poly(vinyl Formal) |
![](file.png) | PVM | Photovoltaic Power Module |
![](file.png) | PVMS | Pressure Vessel Management System |
![](file.png) | PVN | Paraventricular Nucleus |