| Acronym | Meaning |
| ASECS | Antigen-specific Electrophoretic Cell Separation |
| SET | Single Electron Tunneling |
| WHSV | Wt. Hourly Space Velocity |
| ESIPT | Excited-state Intramolecular Proton Transfer |
| IRTF | NASA Infrared Telescope Facility |
| REPELS | Reemitted Positron Energy Loss Spectroscopy |
| VESCF | Variable Electronegativity Self-consistent Field |
| MZDO | Modified Zero Differential Overlap |
| LBSF | Local Back Surface Field (solar Cells) |
| DCPC | Division Of Cancer Prevention And Control |