| Acronym | Meaning |
| DNS | Direct Numerical Simulation |
| ACF | Activated Coke Fines |
| TRDS | Text Retrieval Data System |
| LFAM | Line Focus Acoustic Microscope |
| QMD | Quantum Molecular Dynamics (for Calcns. On The Dynamics Of A Quantum Particle Coupled To A Classical Many-body System) |
| ATLAS | A Toroidal LHC Apparatus |
| EIE | Equilibrium Isotope Effect |
| NTGS | Air/Superfund National Technical Guidance Study |
| STP | Slater-transform-preuss (wave Functions) |
| QUAPI | Quasiadiabatic Propagator Path Integral Method |