| Acronym | Meaning |
| EXELFS | Extended Energy-loss Fine Structure |
| ESR | Erythrocyte Sedimentation Rate |
| EX-MEG | Excited-mixed Exponentially Generated (wave Function) |
| DEA | Drug Enforcement Administration |
| DSA | Dynamic Simulated Annealing (for Electronic Structure In Liq.metals) |
| LPME | Liquid-phase Microextraction |
| ETGAO | Even-tempered Gaussian Atomic Orbital |
| LAC | Liquid Adsorption Chromatography |
| BUN | Blood Urea Nitrogen |
| G2 | Gaussian-two (an Ab Initio Mo Theory For Mol. Energies Calcn.) |