| Acronym | Meaning |
| CADD | Computer Aided Drug Design |
| IDP | Inosine 5'-diphosphate |
| NREL | National Renewable Energy Laboratory (formerly SERI) |
| LCOAO | Linear Combination Of Orthogonal Atomic Orbitals |
| MCPSAG | Marcus-Coltrin-Path Semiclassical Adiabatic Ground-state (transmission Coeffs.) |
| DSPSE | Deep Space Probe Science Experiment |
| AFIS | Advanced Fiber Information System |
| IAS | In-situ Air Sparging |
| ELM | Emulsion Liquid Membranes |
| EELFS | Extended-energy-loss Fine-structure |