| Acronym | Meaning |
| VGAO | Variable Gage Atomic Orbital |
| IRPTC | International Register Of Potentially Toxic Chemicals |
| CCW | Charge Current Wave (type Of Hartree-Fock Wave Function) |
| ATRP | Atom Transfer Radical Polymerization |
| HY-CI | Hylleraas-configuration Interaction |
| MEF | Myocyte Enhancer Factor |
| FOND | Fiber-optic Neutron Detector |
| PODS | Periodic Orbit Dividing Surfaces (in Potential Surface Calcn.) |
| RMBPT | Relativistic Many-body Perturbation Theory |
| WTIE | Wastewater Treatment And Information Exchange |