| Acronym | Meaning |
| HGNC | HUGO Gene Nomenclature Committee |
| EINECS | European Inventory Of Existing Commercial Chemical Substances |
| ISO | IR Space Observatory |
| RNAI | RNA Interference |
| DCM | Decoupled Cell Monte Carlo (in Simulations On Quantum Systems) |
| ACSR | Aluminum Conductor Steel Reinforced |
| NDCT | Natural Draft Cooling Tower |
| MCLT | Minority Carrier Lifetime |
| TTSS | Tropospheric Trace Species Sounder |
| FLMTO | Film Linearized Muffin-tin Orbital (for Surface Electronic Structure Calcns.) |