| Acronym | Meaning |
| MPR | Magnetic Permeability Resonance |
| DASP | Discontinuous Activated Sludge Process |
| STE | Septic Tank Effluent |
| RR | Round Robin (test) |
| DQ-RSPT | Double And Quadruple Excitation Diagrams In Rayleigh-Schroedinger Perturbation Theory |
| LMTO | Linear Muffin-tin Orbital |
| FPC | Fractional Parentage Coeff. (in Group-theor. Calcns.) |
| RVCM | Renormalized Virtual-crystal Method (for Electronic Structure) |
| ADAS | Acid Deposition Assessment Staff |
| NDI | Nondestructive Inspection |