| Acronym | Meaning |
| SMMO | Strictly Monomer Molecular Orbital |
| CEACAM1 | Carcinoembryonic Antigen Cell Adhesion Molecule 1 |
| SINDO | Symmetrically Orthogonalized Intermediate Neglect Of Differential Overlap |
| ACRE | Automatic Climatological Recording Equipment |
| FAO | Floating Atomic Orbital |
| DMA | Direct Multicomponent Analysis |
| NDOL(ND0-L) | Neglect Of Differential Overlap-azimutal Quantum Number (of Valence Ao's) |
| HEDS | Human Exploration And Development Of Space |
| HPC | Heterotrophic Plate Count |
| IMAPS | International Microelectronics And Packaging Society |