| Acronym | Meaning |
| PSOM | Pseudostate Optical Model |
| ASA | Alternancy Symmetry Adapted (method For Spin-independent Hamiltonians For Alternant Hydrocarbons) |
| APD | Air Particulate Detector |
| GRIN | Graded Index |
| ADAS | Angular-dependent Auger Spectroscopy |
| SCA-QD-MBPT | Self-consistently Adapted (core Reference State) Quasidegenerate Many-body Perturbation Theory |
| CINC | Cytokine-induced Neutrophil Chemoattractant |
| DOMES | Deep Ocean Mining Environmental Study |
| BOP | Basic-O Process |
| ASCA | Advanced Satellite For Cosmology And Astrophysics |