| Acronym | Meaning |
| CRM | Certified Reference Material |
| PIXIE | Polar Ionospheric X-ray Imaging Experiment |
| LPA | Local Plasma Approxn. (in Calcns. Of Stopping Powers For Ions By Films) |
| HRV | Heart Rate Variability |
| MFP | Magnetic Field Perturbative (method) |
| MCP | Monocyte Chemoattractant Protein |
| PF | Polar Front |
| UQ-NG | Uniform-quality (basis Set) Constructed With A Number (n) Of Gaussian (g) Functions |
| PDECD | Pulsed Discharge Electron Capture Detector |
| EMAS | Eco-Management & Audit Scheme |