| Acronym | Meaning |
| IES | Internal Eliminated Sequence |
| ISRS | Impulsive Stimulated Raman Scattering |
| FIE | Flow-injection Extraction |
| PIAD | Plasma-ion Assisted Deposition |
| ISM | Interaction Site Model (in Statistical Mechanics Of Fluids) |
| IMF | Intermediate Mass Fragment |
| DFT | Density-functional Theory |
| AES | Atomic Emission Spectroscopy |
| SNR | Signal-to-noise Ratio |
| H-CI | Hylleraas-configuration Interaction |