| Acronym | Meaning |
| DRI | Direct Reduced Iron |
| PSII | Photosystem II |
| HYTEC | Hydrogen Thermoelectrochemical Converter (regenerative Fuel Cell) |
| SDI | Silt Density Index |
| ESEEM | Electron Spin Echo Envelope Modulation |
| PA | Preliminary Assessment |
| IHMM | Institute Of Hazardous Materials Management |
| APTI | Air Pollution Training Institute |
| CCC | Calibration Check Compounds |
| ASCB | American Society For Cell Biology |