| Acronym | Meaning |
| NDDO | Neglect Of Diatomic Differential Overlap |
| MOD | Metalorganic Decomposition |
| PCFB | Pressurized Circulating Fluidized Bed (gasification Apparatus) |
| PED | Potential Energy Distribution |
| COHMED | Cooperative Hazardous Materials Enforcement Development Program |
| BSA | Breathing-sphere Approxn. (for Inelastic Mol. Collisions) |
| NDO | Neglect Of Differential Overlap |
| QBM | Quantal Brownian Motion (model) |
| SISF | Superlattice Intrinsic Stacking Fault |
| BEBO | Bond Energy Bond Order Method |