| Acronym | Meaning |
| PCA | Principal Component Analysis |
| CDM | Cold Dark Matter |
| SPMP | Scanning Proton Microprobe |
| WCRP | World Climate Research Programme |
| MEKP | Methyl Ethyl Ketone Peroxide |
| RLPPS | Reactive Low-pressure Plasma Spraying |
| THGA | Transversely Heated Graphite Atomizer |
| CWRT | Center For Waste Reduction Technologies |
| MIKE | Mass-analyzed Ion Kinetic Energy (spectrometry) |
| GIPQ | Gage Invariant Periodic Quantization |