| Acronym | Meaning |
| SNCR | Selective Noncatalytic Reduction |
| TDD | Telecommunications Device For The Deaf |
| TPPM | Two-pulse Phase Modulation |
| DOI | Department Of The Interior |
| CB1 | Corrected First Born (perturbation Theory In Atom-ion Collisions) |
| SVP | Schwinger Variational Principle |
| TSL | Thermally Stimulated Luminescence |
| USDA | United States Department Of Agriculture |
| APDI | Anisotropic Point-dipole Interaction (model For Calcg. Long-range Intermol. Dispersion Forces) |
| UFL | Upper Flammable Limit |