| Acronym | Meaning |
| DNAA | Delayed Neutron Activation Analysis |
| NCAR | National Center For Atmospheric Research (USA) |
| MRDL | Maximum Residual Disinfectant Level |
| NHEJ | Nonhomologous End Joining |
| NLGI | National Lubricating Grease Institute |
| MST | Microbial Source Tracking |
| RPJ | Radio-frequency Plasma Jet |
| OSCAR | Oxidn. And Scavenging Characteristics Of April Rains |
| AGP | Alpha-1-acid Glycoprotein |
| UAPS | Utility Acid Precipitation Study |