| Acronym | Meaning |
| CNDO SP | Complete Neglect Of Differential Overlap Spin Polarization |
| NIEHS | National Institute Of Environmental Health Science |
| TFA | Target Factor Analysis |
| APTIC | Air Pollution Technical Information Center |
| BTDA | 3,3',4,4'-benzophenonetetracarboxylic Dianhydride |
| PVAC | Poly(vinyl Acetate) |
| QSSA | Quasi-steady-state Approximation |
| OAQPSTTN | Office Of Air Quality Planning And Standards Technology Transfer Network |
| OWG | Optical Waveguide |
| SOD | Superoxide Dismutase |