| Acronym | Meaning |
| IGBP | International Geosphere Biosphere Programme |
| IRRAS | Integrated Reliability And Risk Analysis System |
| MOD | Metalorganic Decomposition |
| CBXT | Community-Based Clinical Trial |
| ZID | Zone Of Initial Dilution |
| CP | Cellulose Propionate |
| SQF | Second-quantized Formulation (in Many-body Quantum Theory) |
| TRS | Transverse Rupture Strength |
| ALU | Arithmetic Logic Unit |
| IAP | Islet-activating Protein |