| Acronym | Meaning |
| ETA | Electrothermal Atomization |
| LIPS | Lanthanide Ion Probe Spectroscopy |
| CHFEP | Coreless Hartree-Fock Effective Potential |
| PETEOS | Plasma-enhanced Tetraethylorthosilicate |
| KLN | Potassium Lithium Niobate |
| AUBF | Anaerobic Upflow Biofilter |
| OPP | Office Of Pesticide Programs |
| NOD | Nitrogenous Oxygen Demand |
| ETEAO | Even-tempered Exponential Atomic Orbital |
| SCPA | Self-consistent Phonon Approximation (for Lattice Dynamics Of Quantum Crystals) |