| Acronym | Meaning |
| ROG | Reactive Organic Gas |
| IPPP | Iterative Pariser-Parr-Pople Method |
| PDF | Probability Density Function |
| FITC | Fluorescein Isothiocyanate |
| TLE | Temporal Lobe Epilepsy |
| AFPR | Alliance Of Foam Packaging Recyclers |
| CNDO/SW | Complete Neglect Of Differential Overlap / Sichel-Whitehead |
| SIIA | Software & Information Industry Association |
| OAQPS | Office Of Air Quality Planning And Standards |
| CAREIRS | Conversion And Renewable Energy Inquiry And Referral Service |