| Acronym | Meaning |
| LIBS | Ligand-induced Binding Sites |
| GIAO | Gage-independent Atomic Orbital |
| SF-PNM | Step Function Perturbative Numerical Method |
| EGW | Electrogas Welding |
| AFP | Antifreeze Protein |
| NARL | National Air And Radiation Laboratory |
| CSDW | Centrifugal Sudden (or Coupled States) Distorted Wave (methodfor Reactive Mol. Collisions) |
| FAM | Friable Asbestos-containing Material |
| GC | Guanine + Cytosine |
| USP | United States Pharmacopeia |