| Acronym | Meaning |
| CTD | Charge Transfer Device (optical Spectroscopic Detector) |
| EDHF | Endothelium-derived Hyperpolarizing Factor |
| RREL | Risk Reduction Engineering Laboratory |
| LTH | Luteotropic Hormone |
| SUMP | Spin-constrained Unrestricted Moeller-Plesset |
| INDO | Intermediate Neglect Of Differential Overlap |
| TOC | Total Organic Carbon |
| SME | Solid-metal Embrittlement |
| CGRO | Compton Gamma-Ray Observatory |
| LIPAS | Laser Induced Photoacoustic Spectroscopy |