| Acronym | Meaning |
| PTI | Positive Thermal Ionization (for Mass Spectrometry) |
| MRM | Multiple Reaction Monitoring |
| CELSS | Controlled Ecological Life Support System |
| HBV | Hartree-Bogolyubov-Valatin (theory In Calcn. Of Wave Functions) |
| EAC | Ehrlich Ascites Carcinoma |
| EIP | Electric Induced Polarization (for Subsurface Characterization) |
| TNOA | Target Natural Orbital Approximation |
| IBV | Infectious Bronchitis Virus |
| ECT | Emission-Computed Tomography |
| MONES | Molecular Nonthermal Excitation Spectrometry |