| Acronym | Meaning |
| ALEXIS | Array Of Low Energy X-Ray Imaging Sensors |
| ITTFA | Iterative Target Transformation Factor Analysis |
| FANES | Furnace Atomization Non-thermal Emission Spectrometry |
| UAP | Utilization Associated Products |
| CIOS | Complex Infinite Order Sudden (approxn. In Quantum Calcns.) |
| PWM | Pulse Width Modulation |
| QFEB | Quasi-free Electron Bremsstrahlung |
| ZDDP | Zinc Dialkyl Dithiophosphate |
| HSCR | Hirschsprung Disease |
| CLIMAP | Climate Long-range Investigation Mapping And Prediction |