| Acronym | Meaning |
| BGE | Background Electrolyte |
| REX | Reactive Extrusion |
| SUPERDARN | Super Dual Auroral Radar Network |
| IAES | Ion Excited Auger Electron Spectroscopy |
| GPCP | Global Precipitation Chemistry Program |
| NMOC | Nonmethane Organic Compound(s) |
| GCSF | Granulocyte Colony-stimulating Factor |
| IFM | Immunofluorescence Microscopy |
| CRISTA | Cryogenic Infrared Spectrometers And Telescopes For The Atmosphere |
| AQS | Air Quality Subsystem (subsystem Of AIRS) |