| Acronym | Meaning |
| XHV | Extremely High Vacuum |
| AESA | Atmospheric Effects Of Stratospheric Aircraft |
| AEA | Acoustic Emission Analysis |
| CAFBR | Ceramic Filled Anaerobic Fixed Bed Reactor |
| ASCW | Axial Spin Current Wave (type Of Hartree-Fock Wave Function) |
| MVC | Mechanical Vapor Compression |
| DID | Dipole-induced-dipole (in Mol. Polarizabilities Calcn.) |
| SCOPE | Scientific Committee On The Problems Of The Environment |
| ASFF | Aerated Stationary Or Submerged Fixed-film (wastewater Treatment) |
| AIHA | Autoimmune Hemolytic Anemia |