| Acronym | Meaning |
| CCPPA | Coupled-cluster Polarization-propagator Approxn. |
| NEET | Nuclear Excitation In Electronic Transition |
| INDO/SP | Intermediate Neglect Of Differential Overlap/spin Polarization |
| CPF | Carcinogenic Potency Factor |
| RACI | Royal Australian Chem. Institute |
| APRF | Acute Phase Response Factor |
| RRPT | Registered Radiation Protection Technologist |
| PSA-CCSD | Partially Spin Adapted-CCSD |
| SESAO | Semiempirical Scaled Atomic Orbital |
| WCA | Water Conservation Area(s) |