| Acronym | Meaning |
| IOW | Integrated Optical Waveguide |
| IMOMO | Integrated Molecular Orbital And Molecular Orbital |
| IEAES | Ion Excited Auger Electron Spectroscopy |
| HEM | Human Exposure Model |
| VOA | Variable Optical Attenuator |
| TIME | Transferred Ionized Molten Energy Process (for Metal Arc Welding) |
| ISCN | International System For Human Cytogenetic Nomenclature |
| DCC | Deleted In Colorectal Cancer |
| PSMA | Prostate Specific Membrane Antigen |
| HLA | Human Leukocyte Antigen |