| Acronym | Meaning |
| SFR | Star Formation Rate |
| NTO | Natural Transition Orbital Method (for Excited States) |
| MRI | Magnetic Resonance Imaging |
| MMIC | Monolithic Microwave Integrated Circuit |
| AMS | Accelerator Mass Spectrometry |
| NRHF | Numerical Restricted Hartree-Fock |
| IMG | Interferometric Monitor For Greenhouse Gases |
| CFB | Circulating Fluidized Bed |
| HNPCC | Hereditary Nonpolyposis Colorectal Carcinoma |
| STT | Surface Tension Transfer |