| Acronym | Meaning |
| TCR | T Cell Receptor |
| ICCA | International Council Of Chemical Associations |
| LOTOS | Long Term Ozone Simulation |
| EMBR | Electromagnetic Brakepar |
| TID | Traveling Ionospheric Disturbance |
| AIIM | Association For Information And Image Management |
| PGS | Phosphosilicate Glass |
| VSS | Volatile Suspended Solids |
| NASN | National Air Sampling Network |
| SMILES | Simplified Molecular Input Line Entry System |