| Acronym | Meaning |
| IAHE | International Association For Hydrogen Energy |
| EELS | Electron Energy Loss Spectroscopy |
| CISDTQ | Configuration Interaction With Single |
| IES | Internal Eliminated Sequence |
| PO | Polarization Orbital |
| AET | Apparent Effects Thresholds |
| NOD | Nitrogenous Oxygen Demand |
| MPIF | Metal Powder Industries Federation |
| ZST | Zero Strength Temperature |
| AMOSC | Australian Marine Oil Spill Center |