| Acronym | Meaning |
| HSI | Heat Stress Index |
| DLA | Diffusion-Limited Aggregation |
| SSSP | Simulation Of Single Sludge Processes |
| PTH | Parathyroid Hormone |
| PVB-CSF | Projected Valence Bond-configuration State Function |
| ALIPS | Automated Laser-Induced Phosphorimeter System |
| PHF | Perturbative Hartree-Fock |
| DQO | Data Quality Objectives |
| STIG | Steam-injected Gas Turbines |
| ASF | Augmented-space Formalism (a Generalization Of CPA) |