| Acronym | Meaning |
| ALU | Arithmetic Logic Unit |
| DXRL | Deep X-ray Lithography |
| ECMRA | European Chemical Market Research Association |
| ICMRCI | Internally Contracted MR-CI |
| DSW | Dirac Scattered-wave (often As SCF-X(alpha)-DSW Method) |
| FMVCP | Federal Motor Vehicle Control Program |
| VLBA | Very Long Baseline Array |
| LLNL | Lawrence Livermore National Laboratory |
| RTH | Resistance To Thyroid Hormone |
| NHO | Natural Hybrid Orbital |