| Acronym | Meaning |
| BHR | Bronchial Hyperresponsiveness |
| EMT | Effective-medium Theory (of Bonding In Metallic Systems) |
| BSE | Backscattering Electrons |
| IAGA | International Association Of Geomagnetism And Aeronomy |
| ATEM | Analytical Transmission Electron Microscopy |
| ECP | Estimated Critical Position |
| ERP | Environmental Review Process |
| MPHF | Maximally Paired Hartree Fock |
| COS | Corona Oxide Semiconductor |
| DNR | Department Of Natural Resources |