| Acronym | Meaning |
| ISCST | Industrial Source Complex Short Term Model (US EPA) |
| FOB | Fecal Occult Blood |
| PAW | Projector Augmented-wave [ab-initio Method] |
| PVC | Pigment Volume Concentration |
| PHDD | Polyhalogenated Dibenzodioxin(s) |
| DON | Dissolved Organic Nitrogen |
| NRO | Natural Reaction Orbital |
| STEM | Scaled Taylor Exponential Model |
| DYANA | Dynamics Algorithm For NMR Applications |
| PF | Pulverized Fuel |