| Acronym | Meaning |
| CEI | Committee On Environmental Improvement |
| MS | Molecular Spinor |
| SRASE | Symmetry Restricted Annihilation Of Single Excitations |
| ROS | Restricted (or Roothaan) Open-shell (Hamiltonian) |
| FCC | Face Centered Cubic |
| MPMMG | Marine Pollution Monitoring Management Group (UK) |
| ISHOW | Information System For Hazardous Organics In Water |
| COSCAT | Coherent Scatter System |
| MVC | Multi-variable Control |
| LOESS | Locally Weighted Smoothers [in Modeling] |