| Acronym | Meaning |
| WSIA | Water Supply Improvement Association |
| BAIR | Biological Atlas Of Insulin Resistance |
| LAC | Liquid Adsorption Chromatography |
| ASAXS | Anomalous Small-angle X-ray Scattering |
| CLP | Contract Laboratory Protocols (EPA) |
| BSO | Basic Symmetric Operator (in Second-quantization Calculations) |
| HUGO | Human Genome Organization |
| MSA | Multivariate Statistical Analysis |
| CIV | Critical Ionization Velocity (ionosphere) |
| QDA | Quadratic Discriminant Analysis |