| Acronym | Meaning |
| TLDA | Total Lifetime Distribution Analysis |
| ANGIS | Australian National Genomic Information Servicepar |
| IRLG | Interagency Regulatory Liaison Group |
| AXS | Anomalous X-ray Scattering |
| DCTP | Direct-current Tast Polarography |
| LEIS | Low-Energy Ion Scattering Spectroscopy |
| GVDW | Generalized Van Der Waals (a Free-energy D.-functional Theory) |
| ALEX | Aerosol LIDAR Experiment |
| VLT | Very Large Telescope |
| TACB | Texas Air Control Board |