| Acronym | Meaning |
 | MWO | Mt. Washington Observatory |
| JOSS | Joint Office For Science Support |
| MDI | Michelson Doppler Imager |
| IWRS | Improved Weather Reconnaissance System |
| TCAS-II | Traffic Alert And Collision Avoidance System |
| IAAC | International Antarctic Analysis Center |
| AHERA | Asbestos Hazard Emergency Response Act |
| EPL | Electron Prototype Lab |
| AMS | American Mathematical Society |
| BPI | Bits Per Inch |
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