| Acronym | Meaning |
| MOCETGAO | Molecule-optimized Contracted Even-tempered Gaussian Atomic Orbital |
| GCG | Genetics Computer Group |
| HQSAR | Holographic Quantitative Structure-activity Relationship |
| QIP | Quantum Information Processing |
| VISITT | Vendor Information System For Innovative Treatment Technology (US EPA) |
| NSSS | National Sewage Sludge Survey |
| RIP | RCRA Implementation Plan |
| NCDC | National Climatic Data Center |
| MEN1 | Multiple Endocrine Neoplasia Type 1 |
| TDVPT | Time-dependent Variation-perturbation Theory |