| PET | Positron Emission Tomography |
|---|---|
| PET | peak ejection time; polyethylene terphthalate; poor exercise tolerance; positron emission tomography... |
| PETT | pendular eye-tracking test; positron emission transverse tomography |
| PIXE | particle-induced x-ray emission; proton-induced x-ray emission |
| e+ | positron |