| Acronym | Meaning |
| IPMA | Ion Probe Microanalysis |
| IRE | Internal Reflection Element |
| SECV | Standard Error Of Cross-validation |
| RSRM | Reusable Solid Rocket Motor |
| IVF | In Vitro Fertilization |
| HRT | Hormone Replacement Therapy |
| TNRCC | Texas Natural Resource Conservation Commission |
| EMAG | Electron Microscopy And Analysis Group |
| OCE | Overall Control Efficiency |
| CCI | Chronic Constriction Injury |