| Acronym | Meaning |
| DFG | Difference Frequency Generation |
| SMBC | Soil Microbial Biomass Carbon |
| MOG | Mobil Olefins-to-gasoline [process] |
| FPA | Flavor Profile Analysis |
| ELISA | Enzyme Linked Immunosorbent Assay |
| LT2ESWTR | Long-Term 2 Enhanced Surface Water Treatment Rule [of US EPA] |
| GANC | Generalized Acid Neutralization Capacity Test |
| RME | Reasonably Maximally Exposed |
| FAO | Floating Atomic Orbital |
| APM | Acoustic Plate Mode |