| Acronym | Meaning |
| MBPT | Many-body Perturbation Theory |
| ACR | Advanced Cracking Reactor (for Ethylene Production From Petroleum) |
| HBL | Health Based Level |
| PRESTO | Prediction Of Radiological Effects To Shallow Trench Operation |
| FSR | Fixed Salt Recovery (in Regeneration Of Blowdown From HCN Scrubber) |
| ARXPS | Angular Resolved X-ray Photoelectron Spectroscopy |
| CVSEH | Correlated Valence Shell Effective Hamiltonian |
| MIRO | Mineral Industry Research Organization (UK) |
| CSVC | Computer System Validation Committee |
| PMN | Polymorphonuclear Leukocyte |