| Acronym | Meaning |
| HMPGI | Hybrid Multiple-prism Grazing-incidence |
| MI | Mitotic Index |
| AFRL | Air Force Research Laboratory |
| UMINDO | Spin-unrestricted Modified Intermediate Neglect Of Differential Overlap |
| RMSEP | Root-mean-square Error Of Prediction |
| LISA | Lander For Ion-selective Analysis |
| TM | Thematic Mapper (Remote Sensing) |
| ANICA | Atmospheric Nutrient Input To Coastal Areas |
| SVT | Silicon Vertex Tracker |
| TPR | Tetratricopeptide Repeat |