| Acronym | Meaning |
| HDM | Humic Degradation Matter |
| QFD | Quantum Fluid Dynamics |
| EFM | Electric Force Microscopy |
| ASHI | American Society Of Histocompatibility And Immunogenetics |
| EMMA | Electron Microscopy And Microanalysis |
| AO | Office Of The Administrator |
| RAN | Residual Acrylonitrile |
| ALADDIN | Atmospheric Layer And Density Distribution Of Ions And Neutrals (NASA) |
| IDGE | Isothermal Dendritic Growth Experiment |
| ATDC | After Top Dead Center (gasoline And Diesel Engine Timing) |