| Acronym | Meaning |
| HSV | Herpes Simplex Virus |
| PAC | Polycyclic Aromatic Compound |
| IUPPA | The International Union Of Air Pollution Prevention Associations |
| APOMA | American Precision Optics Manufacturers Association |
| ESPT | Excited-state Proton Transfer |
| FOPPA | First-order Polarization Propagator Approach |
| DATBP | Diallyl Tetrabromophthalate |
| MLSS | Mixed Liquor Suspended Solids |
| HAUP | High Accuracy Universal Polarimeter |
| SCPA | Self-consistent Phonon Approximation (for Lattice Dynamics Of Quantum Crystals) |