| Acronym | Meaning |
| GM | Geometric Mean |
| HFS | Hyperfine Structure |
| NCRPM | National Council On Radiation Protection And Measurements |
| NCLAP | National Crop Loss Assessment Program |
| NAAQS | National Ambient Air Quality Standards |
| FMECA | Failure-mode Effects And Criticality Analysis |
| ICAM | Intercellular Adhesion Molecule |
| MRM | Multiresidue Method |
| DIB | Diffuse Interstellar Band |
| ANC | Acid Neutralizing Capacity |