| Acronym | Meaning |
| HSK | Hylleraas Scherr Knight (variational Perturbation Procedure) |
| DAA | Days After Anthesispar |
| LCD | Liquid Crystal Diode |
| QPO | Quasi-periodic Oscillation |
| MODIS | Moderate Resolution Imaging Spectroradiometer |
| NSO | Natural Spin Orbitals |
| MOE | Modulus Of Elasticity |
| AAMOM | An Approximate Molecular Orbital Method |
| FCV | Feline Calicivirus |
| PCM | Polarizable Continuum Model |