| Acronym | Meaning |
| AAIT | Atomic Absorption Inhibition Titration |
| COMARO | Composite Magic-angle Rotation |
| AUSB | Aerobic Upflow Sludge Blanket |
| MRM | Multiple Reaction Monitoring |
| ESIX | Electrically Switched Ion Exchange |
| SCPF | Self-consistent Polarization Field Method |
| BMD | Born-Mayer (plus) Dispersion (potential Function) |
| ECIP | Energy Conservation Investment Program |
| AIPM | Analytic Independent-particle Model (in Electron-scattering) |
| OPE | Operator Product Expansion |