| Acronym | Meaning |
| HTLA | Heat-treatable Low Alloy (steel) |
| IBS | Ion Backscattering Spectroscopy |
| CBDS | Carcinogenesis Bioassay Data System |
| TLM | Transmission Line Method |
| ABWR | Advanced Boiling Water Reactor |
| SSED | Solar System Exploration Division (NASA) |
| HAEC | Human Aortic Endothelial Cell |
| ORSTB | Overlap-reduced Semiempirical Tight-binding |
| PERCI | Photoelectron Resonance Capture Ionization |
| IBD | Inflammatory Bowel Diseases |