| Acronym | Meaning |
| OPTS | Office Of Pesticides And Toxic Substances (USEPA) |
| DCCC | Droplet Counter Current Chromatography |
| HWAC | Hazardous Waste Action Coalition |
| TPM | Two-potential Model (in At. Scattering Calcns.) |
| DMPK | Myotonic Dystrophy Protein Kinase |
| PES | Potential Energy Surface |
| SPE | Solar Proton Event |
| PRA | Probabilistic Risk Assessment |
| SRIXE | Synchrotron Radiation-induced X-ray Emission |
| OLGA | On-Line Gas Chemistry Apparatus |