| Acronym | Meaning |
| PGNAA | Prompt Gamma Neutron Activation Analysis |
| UMO | Unmodified Molecular Orbital |
| DIGGER | Discrete Isolation From Gradient-governed Elimination Of Resonances |
| BABB | Back Arc Basin Basalt |
| AMC | Alkyd Molding Compound |
| ACIT | Adoptive Chemoimmunotherapy |
| ROD | Record Of Decision |
| SLBO | Strictly Localized Bond Orbital |
| SPPES | Spin Polarized Photoelectron Spectroscopy |
| EDF | Environmental Defense Fund |