| Acronym | Meaning |
| HFB SCF RPA | Hartree Fock Bogolyubov SCF Random Phase Approximation |
| WRAS | Waste Reduction Advisory System |
| ARIPES | Angle-resolved Inverse Photoemission Electron Spectroscopy |
| HRV | Heart Rate Variability |
| RTP | Room Temperature Phosphorescence |
| WAP | Wireless Application Protocol |
| IPPP | Iterative Pariser-Parr-Pople Method |
| TEA | Transversely-excited Atmospheric Pressure |
| INDO/SP | Intermediate Neglect Of Differential Overlap/spin Polarization |
| RMP | Restricted Moeller-Plesset |