| Acronym | Meaning |
| PEOE | Partial Equalization Of Orbital Electronegativity (model) |
| HEN | Heat Exchanger Network |
| DBL | Diffusive Boundary Layer |
| HOAT | 1-hydroxy-7-azabenzotriazole (peptide Coupling Agent) |
| HSDP | Hawaiian Scientific Drilling Project |
| SCLC | Space Charge Limited Current |
| NBSR | Neutron Beam Split-core Reactor |
| STECS | Solar Thermal Electric Conversion Systems |
| LAMBD | Laser Assisted Molecular Beam Deposition |
| IAM | Integrated Assessment Modeling |