| Acronym | Meaning |
| SALI | Secondary Atom Laser Ionization |
| NTEF | Near Total External Fluorescence |
| DEFT | Driven Equilibrium Fourier Transform |
| CSR | Coke Strength After Reaction |
| EIA | Eikonal Impulse Approxn. (in Ion-atom Inelatic Collisions) |
| SAR | Structure-Activity Relationship |
| HFI | Hyperfine Interaction |
| MAWP | Maximum Allowable Working Pressure |
| E-2PH-TDA | Extended Two-particle-hole Tamm-Dancoff Approxn. (green-function Method For Ionization-energy Calcns.) |
| ARRPA | Air Resources Regional Pollution Assessment Model |