| Acronym | Meaning |
| WDA | Weighted-density Approxn. (within D. Functional Formalism) |
| ANPR | Advance Notice Of Proposed Rulemaking |
| GIXR | Grazing Incidence X-ray Reflectivity |
| SPEED | SiRNA Prodn. By Enzymatic Engineering Of DNA |
| THM | Transcorrelated Hamiltonian Method |
| FAD | Flavin Adenine Dinucleotide |
| ISS | Intermediate Solid Solution |
| LCHOP | Linear Combination (of) Harmonic Oscillator Products |
| CSM | Continuum Solvation Model |
| AFS | AIRS Facility Subsystem (subsystem Of AIRS) |