| Acronym | Meaning |
| WSM | Watershed Model |
| NOEC | No Observed Effect Concentration |
| MTD | Maximum Tolerated Dose |
| RSMR | Rayleigh Scattering Of Moessbauer Radiation |
| CISC | Configuration Interaction (with) Size-consistency (correction) |
| CSF | Carcinogenic Slope Factor |
| MUSAC | Measurement Uncertainty Software In Analytical Chemistry |
| NCDS | NASA Climate Data System |
| MCTDHF | Multiconfiguration Time-dependent Hartree-Fock |
| TIGER | Triangulation-Identification For The Genetic Evaluation Of Risk |