| Acronym | Meaning |
| MWEP | Monofilled Waste Extraction Procedure |
| RIHRA | Research To Improve Health Risk Assessments Program (US EPA) |
| NCWQ | National Commission On Water Quality |
| EH | Extended Hueckel |
| IND | Investigational New Drug |
| MED | Minimal Erythema Dose |
| YSAG | Yttrium Scandium Aluminum Garnet |
| BMAW | Bare Metal Arc Welding |
| SCC | Stress-corrosion Cracking |
| MSO | Maximum Similarity (spin) Orbital |