| Acronym | Meaning |
| SCAUA | Semiclassical Approxn. United Atom |
| PXRF | Polarized X-ray Fluorescence |
| HART | Highway Addressable Remote Transducer [Rosemount |
| LCHOP | Linear Combination (of) Harmonic Oscillator Products |
| PGA | Prostaglandin A |
| CRWQCB | California Regional Water Quality Control Board |
| IMS | Intelligent Manufacturing Systems |
| EGCM | Eddy-Resolving General Circulation Model |
| HFFC | Hartree-Fock Frozen Core |
| NESCAUM | North East States Coalition For Air Use Management |