| Acronym | Meaning |
| MOCED | Molecular Orbital Constrained Electron Diffraction Method |
| RISC | Reduced-instruction-set Computer |
| PNGV | Partnership For A New Generation Of Vehicles |
| RBS | Ribosome Binding Site |
| HFJ | Hartree-Fock-Jucys (in Electron-correlation Corrections Calcn.) |
| MW | Molecular Weight |
| ARDRA | Amplified RDNA Restriction Analysis |
| EXRHF | Extended Restricted Hartree-Fock |
| PCPI | Permanent Committee On Patent Information |
| MAM | Modified Atoms (in) Molecules |