| Acronym | Meaning |
| PRE | Proton Relaxation Enhancement |
| ALI | Annual Limit On Intake |
| LRT | Long Range Transport |
| VRPA | Variational Random Phase Approxn. |
| TDCC | Time-dependent Close-coupling |
| EDXD | Energy Dispersive X-ray Diffraction |
| AASE | Airborne Arctic Stratospheric Expedition |
| SML | Surface Microlayer |
| RID | Recrystn. Induced Diffusion |
| AACVD | Aerosol-assisted Chemical Vapor Deposition |