| Acronym | Meaning |
| ICTA | International Confederation Of Thermal Analysis |
| RAS | Returned Activated Sludge |
| SPIRIT | Single Photon Ionization Resonance Ionization To Threshold |
| SCALPEM | Scanning Laser Photoelectrochemical Microscopy |
| SEP | Stimulated Emission Pumping |
| RFPS | Radio-frequency Plasma Spraying |
| BRAP | Biometry And Risk Assessment Program |
| INDO/CS | INDO/conformation Spectra |
| FAD | Flavin Adenine Dinucleotide |
| PERCI | Photoelectron Resonance Capture Ionization |