| Acronym | Meaning |
| IEPA | Illinois Environmental Protection Agency |
| RGS | Regulator Of G-protein Signaling |
| DPM | Disintegrations Per Minutepar |
| RECA | Regional Energy Convergence Approxn. (in Total Energies Calcns.) |
| CC-EH | Coupled-cluster Effective Hamiltonian |
| AQL | Acceptable Quality Levels |
| ALABC | Advanced Lead Acid Battery Consortium |
| BHGM | Borehole Gravity Meter |
| CNDO/2-FA | Complete Neglect Of Differential Overlap First Approxn. |
| MMDR | Microwave-microwave Double Resonance |