| Acronym | Meaning |
| HTU | Height Of Transfer Unit (in Packed Tower Aeration System) |
| ITP | Inosine 5'-triphosphate |
| TDM | Time-division Multiplexing |
| TRAIL | Tumor Necrosis Factor Related Apoptosis Inducing Ligand |
| HFRP | Hybrid Fiber Reinforced Plastics |
| GADD | Growth Arrest And DNA Damage |
| DOCC | Description Of Current Conditions |
| KSHV | Kaposi Sarcoma-associated Herpesvirus |
| ACIS | Advanced CCD Imaging Spectrometer |
| RSPT | Rayleigh-Schroedinger Perturbation Theory |