| Acronym | Meaning |
| NSH | Normalized Spherical Harmonic (hamiltonian) |
| PET | Potential Evapotranspiration |
| FP | Finite Perturbation |
| PTV | Programmed Temp. Vaporizing |
| SARS | Severe Acute Respiratory Syndrome |
| TEP | Thermoelectric Power |
| GCG | Genetics Computer Group |
| TDCP-HFR | Time-dependent Coupled Perturbed Hartree-Fock-roothan Approach |
| DCTP | Direct-current Tast Polarography |
| IMPT | Intermolecular Perturbation Theory |