| Acronym | Meaning |
| MRF | Myogenic Regulatory Factor |
| HNBR | Hydrogenated Acrylonitrile-butadiene Rubber |
| GRGL | Groundwater Residue Guidance Level |
| GWPS | Groundwater Protection Standard |
| SORCE | Solar Radiation And Climate Experiment |
| LGFSTF | Liquefied Gaseous Fuels Spill Test Facility (DOE Mercury |
| DMRG | Density Matrix Renormalization Group (quantum Calcn. Method) |
| GRB | Gamma Ray Burst |
| BSRS | Backward Stimulated Raman Spectrometry |
| UBT | Urea Breath Test |