| Acronym | Meaning |
| HEBBLE | High Energy Benthic Boundary Layer Experiment |
| ASI | Advanced Study Institute (NATO) |
| HUDF | Hubble Ultra Deep Field |
| TALMS | Tunable Atomic Line Molecular Spectroscopy |
| XCC | Expectation-value Coupled-cluster (in Correlation Energies And Electronic Properties Of Many-electron Systems Calcns.) |
| PPAC | Parallel-plate Avalanche Counter |
| RAPJ | Rotating Arc Plasma Jet |
| CELISA | Competitive Enzyme-linked Immunoabsorbent Assay |
| PAO | Polyphosphate Accumulating Organism |
| SPIN | Silica Phase-immobilized Nitroxide |