| Acronym | Meaning |
| RIHRA | Research To Improve Health Risk Assessments Program (US EPA) |
| CMC | Conditional Moment Closure [model] |
| FISH | Fluorescence In Situ Hybridization |
| MBS | Minimum Basis Set Wave Function |
| BSAF | Biota-to-sediment Accumulation Factor |
| HRATS | High-Rate Anaerobic Treatment Systems |
| HMIS | Hazardous Material Identification System |
| EESL | Environmental Ecological And Support Laboratory |
| CAT | Chloramphenicol Acetyltransferase |
| CAICISS | Coaxial Impact Collision Ion Scattering Spectroscopy |