| Acronym | Meaning |
| EPT | Exponential Perturbation Theory |
| BPR | Biological Phosphorus Removal |
| DAP | Distributed Array Processor |
| BRS | Bibliographic Retrieval Service |
| QMCRG | Quantum Monte-Carlo Renormalization Group (for Quantum Phase Transitions) |
| CBIRF | US Marine Corps' Chem/Bio Incident Response Force |
| ASTER | Assessment Tools For The Evaluation Of Risk |
| SRS | Symmetrized Rayleigh-Schroedinger (perturbation Theory) |
| CFBC | Circulating Fluidized Bed Combustion |
| EUMAC | European Modeling Of Atmospheric Constituents |