| Acronym | Meaning |
| EACN | European Air Chemistry Network |
| ATLAS | A Toroidal LHC Apparatus |
| FOLZ | First-order Laue Zone |
| IAES | Ion Excited Auger Electron Spectroscopy |
| DMA | Dynamic Mechanical Analysis (for Elastomers) |
| FID | Free Induction Decay (Fourier Transform Spectroscopy) |
| IGF | Irreducible Green Function |
| GCSOA | Gain-clamped Semiconductor Optical Amplifier |
| GCE | Ground-based Cloud Experiment |
| DTC | Developmental Test Command [US Army] |