| Acronym | Meaning |
| PTS | Pressure Tuning Spectroscopy |
| PTA | Packed Tower Aeration |
| IBS | Irritable Bowel Syndrome |
| ICC | Intrahepatic Cholangiocarcinoma |
| MELODRAMA | Melding Of Spin-locking Dipolar Recovery At The Magic Angle |
| PVAC | Poly(vinyl Acetate) |
| RAINBOWS | Reduced And INternally Biased Oxide Wafers |
| HW | Hazardous Waste |
| LISA | Library And Information Science Abstracts |
| OPW | Orthogonalized Plane Wave |