| Acronym | Meaning |
 | AFEAS | Alternative Fluorocarbon Environmental Acceptability Study |
| SA-CAS-SCF | State-averaged-complete Active Space-SCF |
| FEM | Finite Element Method |
| ETP | Emerging Technology Program (USEPA SITE) |
| APGF | Antisymmetrical Product Of Group Functions (a Wave Function) |
| CEA | Carcinoembryonic Antigen |
| ACCDPPA | Approx. Coupled Cluster With Double Excitations Polarization Propagator Approxn. |
| RMBPT | Relativistic Many-body Perturbation Theory |
| CIT | Cylindrical Ion Trap |
| CES | Committee On Earth Science (Office Science & Technology Policy) |
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