| Acronym | Meaning |
| GR | Glucocorticoid Receptorpar |
| EMAT | Electromagnetic-acoustic Transducers |
| CIOS | Complex Infinite Order Sudden (approxn. In Quantum Calcns.) |
| QBM | Quantal Brownian Motion (model) |
| HDR | Hot Dry Rock (geothermal Reservoir) |
| GEOS | Goddard Earth Observing System |
| MAMO | Multiparameter Alternant Molecular Orbital |
| CSA | Canadian Standards Authority |
| ASFF | Aerated Stationary Or Submerged Fixed-film (wastewater Treatment) |
| MVMA | Motor Vehicle Manufactures Association |