| Acronym | Meaning |
| CGA | Colloidal Gas Aphron |
| ADAM | Average Depleted Antarctic Meltwater |
| TAN | Total Acid Number |
| RCIOSA | Reactive Classical-infinite-order-sudden Approxn. |
| PSDF | Power Systems Development Facility |
| PEM | Pacific Exploratory Measurements |
| EMM | Electron Mirror Microscopy |
| LAER | Lowest Achievable Emission Rate |
| FREMSAAS | Frequency Modulated Simultaneous Atomic Absorption Spectrometry |
| SCTB | Self-consistent Tight-binding (in Electronic Structure) |