| Acronym | Meaning |
| LDEF | Long Duration Exposure Facility (for Spacecraft Material Testing) |
| GLOBE | Global Learning And Observations To Benefit The Environment |
| PMTDI | Provisional Maximum Tolerable Daily Intake |
| QDVPT | Quasidegenerate Variational Perturbation Theory |
| CC-PV(D,T,Q) | Correlation-consistent Polarized (double, Triple, Or Quadruple)-split Valence Basis Set |
| PEBBLE | Probes Encapsulated By Biologically Localized Embedding |
| EQE | Equivalent Quantum Efficiency |
| XFA | X-ray Fluorescence Analysis |
| RIOS | Reactive Infinite-order Sudden (at.-mol. Reactive Collisions) |
| FASEB | Federation Of American Societies For Experimental Biology |