| Acronym | Meaning |
| LHEA | Laboratory For High Energy Astrophysics |
| TAS | Total Analysis Systems |
| LD-KGC | Linz-Donawitz-Kawasaki Gas Control (steel Converter Furnaces) |
| CFM | Continued-fraction Method |
| ALEX | Aerosol LIDAR Experiment |
| ONWI | Office Of Nuclear Waste Isolation |
| DIIS | Direct Inversion In The Iterative Space |
| SOCI | Standard Optimum Control [structure With] Integral [action] |
| CIP | Configuration Interaction With Partner Orbitals |
| NCDC | National Climatic Data Center |