| Acronym | Meaning |
| FEI | Fire And Explosion Index |
| IADN | Integrated Atmospheric Deposition Network |
| SFMS | Sector Field Mass Spectrometry |
| PETN | Pentaerythritol Tetranitrate |
| TDM | Time-division Multiplexing |
| ANRHRD | Air Noise Radiation Health Research Division |
| DIDA | Direct Isotope Dilution Analysis |
| EXPASY | Expert Protein Analysis System |
| LDC | Less Developed Countries |
| CNT | Carbon Nanotube |