| Acronym | Meaning |
| PIT | Phase Inversion Temperature |
| LCAO | Linear Combination Of Atomic Orbitals |
| MPLS | Modified Partial Least Squares |
| ATLAS | A Toroidal LHC Apparatus |
| ADAP | Angular Distribution Of Annihilating Photons |
| PEANUT | Phase-inverted Echo-amplitude Detected Nutation |
| ASTHO | Association Of State And Territorial Health Officers |
| TLS | Two-level System (with Tunneling Transitions Between Wells Of Double-well Potential) |
| HSA | Human Serum Albumin |
| LAOS | Large Amplitude Oscillatory Shear |