| Acronym | Meaning |
| HBVE | 4-hydroxybutyl Vinyl Etherpar |
| HESSI | High Energy Solar Spectroscopic Imager |
| PAB | Passenger-side Air Bag |
| MAHRSI | Middle Atmosphere High Resolution Spectrograph Investigation |
| TPM | Two-potential Model (in At. Scattering Calcns.) |
| MRDL | Maximum Residual Disinfectant Level |
| CV | Core-valence Correlation |
| ECF | Elemental Chlorine Free [as In Nonchlorine Bleaching] |
| USABC | United States Advanced Battery Consortium |
| APFIM | Atom Probe Field Ion Microscopy |