| Acronym | Meaning |
| MFP | Mean Free Path |
| EXAMS | Exposure Analysis Modeling System |
| ORGDL | Oak Ridge Gaseous Diffusion Lab. |
| TFA | Total Fatty Acids |
| EBV | Epstein-Barr Virus |
| IDAF | Interacting Distributed Approximating Function (propagator |
| MF | Muffin Tin (potential Energy Function) |
| LPG | Liquefied Petroleum Gas |
| REPA | Resource And Environmental Profile Analysis |
| PPI | Proton Pump Inhibitor |