| Acronym | Meaning |
| PTSPGF | Perturbative-type Single-particle Green Function |
| RFC | Inhalation Reference Concentration |
| SESAME | Second European Stratospheric Arctic And Midlatitude Experiment |
| LGIC | Ligand-gated Ion Channel |
| RRPT | Registered Radiation Protection Technologist |
| HLA | Human Leukocyte Antigen |
| IC-ACPF | Internally Contracted (multireference) Averaged Coupled Pair Functional |
| CSRR | Coupled-state Rigid-rotor |
| RBM | Random Bonding Model |
| IRZ | Immediate Response Zone |