| Acronym | Meaning |
| HAGAR | High Altitude Gas Analyzer |
| NIEHS | National Institute Of Environmental Health Science |
| IMOMO | Integrated Molecular Orbital And Molecular Orbital |
| UFG | Ultrafine Grained |
| MOU | Memorandum Of Understanding |
| COC | Cyclic Olefin Copolymers |
| CSF | Configuration Spin Function (a Wave Function) |
| QCA | Quasicrystalline Approximation |
| DAS | Dendrite Arm Spacing |
| DPA | Dipicolinic Acid |