| Acronym | Meaning |
| TIAS | Technology Investment Assessment Screen |
| DTR | Diffusion Transfer Reversal |
| ACF | Anticoagulant Factor |
| CAMK | Calcium Calmodulin-dependent Protein Kinase |
| GPM | Generalized Perturbation Method (in Electronic Theory Of Phase Stability Of Alloys) |
| ACCAD | Advisory Committee On Climate Applications And Data |
| PAR | Photosynthetically Active Radiation |
| CELSIUS | Cooling With Electrons And Storing Of Ions From The Uppsala Synchrocyclotron |
| CBF | Cerebral Blood Flow |
| RCHF | Relaxed-core Hartree-Fock (approxn. In Calcns. On Mol. K-shell Excitation Spectra) |