| Acronym | Meaning |
| BIPP | Boron Implanted Polysilicon Pad |
| IAPA | Independent Asymptotic Pair Approxn. (in Electronic Structure) |
| AWG | Arrayed Waveguide Grating |
| AAP | Asbestos Action Program |
| CSD | Cortical Spreading Depression |
| PERC | Passivated Emitter And Rear Cell (solar Cells) |
| PPAR | Peroxisome Proliferator-activated Receptor |
| XPM | X-ray Photoelectron Microscopy |
| SON | Supraoptic Nucleus |
| S-MPPT | Supermolecular Moeller-Plesset Perturbation Theory |