| Acronym | Meaning |
| MMD | Mass Medium Diameter (particle Size) |
| CELSIUS | Cooling With Electrons And Storing Of Ions From The Uppsala Synchrocyclotron |
| NBACC | National Biodefense Analysis And Countermeasures Centerpa |
| GPM | Generalized Perturbation Method (in Electronic Theory Of Phase Stability Of Alloys) |
| ARC | AIDS-related Complex |
| VPAM | Variable Phase Amplitude Method (for Electron-atom Scattering) |
| SLS | Sequential Lateral Solidification |
| SARIS | Scattering And Recoiling Imaging Spectrometry |
| COC | Chain Of Custody |
| VC | Vapor Compression |