| Acronym | Meaning |
| BOP | Basic-O Process |
| AWI | Air Water Interface |
| PMP2 | (spin) Projected Moeller-Plesset Second-order (perturbation Theory) |
| UOP | Universal Oil Products |
| FIS | Field Ion Spectroscopy |
| OWPE | Office Waste Programs Enforcement |
| PAR | Photosynthetically Active Radiation |
| F/M | Food To Microorganism Ratio |
| LAWG | Laboratory Accreditation Working Group |
| IMO | Intermolecular Mol. Orbital |