| Acronym | Meaning |
| AFSEF | AIRS Facility Subsystem Emission Factors |
| HIT | Hazard Information Transmission |
| QBO | Quasi-biennial Oscillation (atm.) |
| CCO | Coupled-channel-optical (potential |
| CCAP | Climate Change Action Plan |
| GKS | Gaspar-Kohn-Sham (potential For Exchange And Correlation In Band Structure Calcns.) |
| PHS | Public Health Service |
| TDMCSCF | Time-dependent MC-SCF |
| KIPO | Korean Intellectual Property Office |
| MHC | Major Histocompatibility Complex |