| Acronym | Meaning |
| COBRAS | Cosmic Background Radiation Anisotropy Satellite |
| LT2ESWTR | Long-Term 2 Enhanced Surface Water Treatment Rule [of US EPA] |
| DAPS | Disappearance Potential Spectroscopy |
| AP | Appearance Potential |
| REMS | Reflection Mass Spectrometry |
| ADF | Actin-Depolymerizing Factor |
| CETTP | Complex Effluent Toxicity Testing Program (US EPA) |
| MOV | Motor Operated Valve |
| NMRD | Nuclear Magnetic Relaxation Dispersion |
| DOAS | Differential Optical Absorption Spectroscopy |