| Acronym | Meaning |
| DOT | Diffuse Optical Tomography |
| QMC | Quantum Monte-Carlo (theory For Many-electron Atoms And Mols.) |
| WAND | Wide Angle Neutron Diffraction |
| RCR | Replication-competent Retrovirus |
| HSF | Hiller-Sucher-Feinberg (equation For Calcn. Of Spin Densities And Charge Densities In Mols.) |
| PTX | Pertussis Toxin |
| HPDSC | High-pressure Differential Scanning Calorimetry |
| QIP | Quality Improvement Program |
| CLC | Clean Lakes Clearinghouse |
| IOC | Intergovernmental Oceanographic Commission |