| Acronym | Meaning |
| CDPT | Constant Denominator Perturbation Theory |
| FFDCA | Federal Food, Drug, And Cosmetic Act (US) |
| ASEC | Applied Solar Energy Corporation |
| LGM | Linearized Green-function Method (for Electronic-structure) |
| PFR | Plug Flow Reactor |
| PLC | Preparative (thin) Layer Chromatography |
| HSA | Hyperspherical Adiabatic (for Resonances In Electron-atom Scattering. Energy Levels |
| EB | Ethyl Benzene |
| RCR | Replication-competent Retrovirus |
| MRCI | Multireference Configuration Interaction |