| Acronym | Meaning |
| C4 | Controlled Collapse Chip Connection |
| LHDC | Lube Hydrocracking Distillate Catalyst |
| RBC | Red Blood Cell |
| UMER | Ultrasonically Modulated Electron Resonance |
| NBR | Nitrile-butadiene Rubber |
| CRBP | Cellular Retinol Binding Protein |
| NRPB | National Radiological Protection Board |
| SEC | Scaled External Correlation (extrapolation Method In CI Calcn.) |
| MMLV | Moloney Murine Leukemia Virus |
| NELAP | National Environmental Laboratory Accreditation Program |