| Acronym | Meaning |
| ORS | Odds Ratios |
| PFBC-CC | Pressurized Fluidized-bed Combustion/combined Cycle (of Coal) |
| MDGC | Multidimensional Gas Chromatography |
| MIBD | Micro-interferometric Backscatter Detection |
| ECR | Eriochrome Cyanine Rpar |
| ZIP | Zinc Impurity Photodetector |
| LAWG | Laboratory Accreditation Working Group |
| DLA | Diffusion-Limited Aggregation |
| ISAW | Interactive Self-avoiding Walk [modeling] |
| PAL | Positron Annihilation Lifetime |