| Acronym | Meaning |
 | WSM | Watershed Model |
 | UTLA | Ultra Thin Layer Activation |
 | SCALPEL | Scattering With Angular Limitation Projection Electron Lithography |
 | HOMER | Hazardous Organic Mass Emission Rate |
 | CLOS | Common Lisp Object System (language) |
 | CN | Condensation Nucleus |
 | CWA | Chemical Warfare Agent |
 | CARS | Coherent Anti-Stokes Raman Spectroscopy |
 | HESSI | High Energy Solar Spectroscopic Imager |
 | SCALE | Symmetrically Configured AC Light Emitting [device] |