| Acronym | Meaning |
| PPO | Poly (phenylene Oxide) |
| SIGLE | System For Information On Grey Literature In Europe |
| GTDA | Generalized Tamm-Dancoff Approximation |
| NIGA | Neutron Induced Gamma Activity |
| CEPPO | Chemical Emergency Preparedness And Prevention Office |
| SDECI | Singly And Doubly Excited Configuration Interaction |
| L-CPMET | Linearized Coupled-pair Many-electron Theory |
| CAT | Clear Air Turbulence |
| NPA | Natural Population Analysis |
| SORI-CID | Sustained Off-resonance Irradn. Collision-induced Dissocn. |