| Acronym | Meaning |
| CIT | California Institute Of Technology |
| LFS | Li-Fraumeni Syndrome |
| TPPM | Two-pulse Phase Modulation |
| CNDO/2-FPP | Complete Neglect Of Differential Overlap With Finite Perturbation And Polarization |
| CLIM | Climate Change Database (accessible Through OLS) |
| HID | High Interstitial Defect |
| LLRD | Long-lived Radioactive Dust |
| HADES | High Activity Disposal Exptl. Site [for Radioactive Waste] |
| TACI | Transmembrane Activator And CAML Interactor |
| CAN | Cellulose Acetate Nitrate |