| Acronym | Meaning |
| NAS | National Academy Of Science |
| ACRS | Advisory Committee On Reactor Safeguards |
| CGCC | Coal Gasification/combined Cycle |
| DDLS | Depolarized Dynamic Light Scattering |
| HFCC | Hyperfine Coupling Constant |
| TCLP | Toxicity Characteristic Leaching Procedure |
| NSO | Natural Spin Orbitals |
| TPCA | Toxic Pit Cleanup Act (of California |
| PIUG | Patent Information Users Group |
| ACIT | Adoptive Chemoimmunotherapy |