| Acronym | Meaning |
| ODF | Orientation Distribution Function |
| APS | American Physical Society |
| GLT | Geochemical Logging Tool |
| FDM | Finite-difference Method |
| TOR | Tropospheric Ozone Research |
| WGSATM | Working Group On The Statistical Aspects Of Trend Monitoring (ICES) |
| CBMAPDT | Committee On Biologic Markers Of Air-Pollution Damage In Trees |
| BMAW | Bare Metal Arc Welding |
| SOMBT | Spin-orbital Many-body Theory |
| SNAP | Significant New Alternative Policy |