| Acronym | Meaning |
| MOCD | Molecular Orbital Correlation Diagram |
| ICBN | International Code Of Botanical Nomenclature |
| STIRAP | Stimulated Raman Adiabatic Passage |
| VD-RCC | Vibrational Diabatic-rotational Close-coupled (method In Mol. Collision Calcns.) |
| RSC | Relative Source Contribution |
| HAZMAT | Hazardous Materials |
| GW | One-particle Green Function(g)-screened Coulomb Interaction(w) |
| PBTK | Physiologically Based Toxicokinetics |
| FIRMR | Federal Information Resources Management Regulations |
| PEPECO | Photoelectron-photoelectron Coincidence |