| Acronym | Meaning |
| TCDE | Two-center Dirac Equation |
| AIR CHIEF | Air ClearingHouse For Inventories And Emission Factorspar |
| FUBAR | F(ouled) Up Beyond Recognition |
| FBA | First Born Approximation |
| CGR | Coliform Growth Response |
| RAPID | Ruggedized Advanced Pathogen Identification Device |
| DT | Dynamic Tear |
| CERL | Construction Engineering Research Laboratory (US Army) |
| ADMIS | Agfa Document Management Information System |
| TH | Total Hardness [of Water] |