| Acronym | Meaning |
| PLL | Phase Locked Loop |
| SCFB | Standard Cubic Feet Per Barrel |
| ELLPAT | Environmental Lead Laboratory Proficiency Analytical Testing |
| OSTL | Optically Stimulated Thermoluminescence |
| NPR | Net Protein Retention |
| ARMS | Angle-resolved Mass Spectrometry |
| MC-SCF | Monte Carlo Self-consistent-field |
| PLTD | Phospholipid Transfer Protein |
| MODR | Microwave Optical Double Resonance |
| EMP | Electrostatic Molecular Potential (for Electronic-structure) |