| Acronym | Meaning |
| IBICC | Ion Beam Induced Charge Collection |
| DDE | Dichlorodiphenyldichloroethylene |
| LASCR | Light-activated Silicon Controlled Rectifier |
| FBC | Fluidized Bed Combustor |
| R-CNDO/1X | Relativistic Complete Neglect Of Differential Overlap (method) |
| SIMP | Solar Irradiance Monitoring Program |
| OPAL | Omni-Purpose Apparatus At LEP |
| IRIS | Imaging Of Radicals Interacting With Surfaces |
| ECMWF | European Center For Medium Range Weather Forecast |
| TPCA | Toxic Pit Cleanup Act (of California |