| Acronym | Meaning |
| HCS | Hazard Communication Standard |
| EHM | Extended Hubbard Model (hamiltonian) |
| SME | Solar Mesosphere Explorer |
| CGI | Clinical Global Impression |
| IMD | Intermetal Dielectric |
| CGDN | Canadian Genetic Diseases Network |
| HAA | Heterocyclic Aromatic Amine |
| HSC | Hyperspherical Coordinate (representation In Calcns. On Electron-atom Scattering) |
| BIND | Biomolecular Interaction Network Database |
| UKAS | United Kingdom Accreditation Service |