| Acronym | Meaning |
| HED | Howardite-eucrite-diogenite (suite Of Achondrite Meteorites) |
| TDVP | Time-dependent Variational Principle (in Scattering Calcns.) |
| SPIRIT | Single Photon Ionization Resonance Ionization To Threshold |
| VVHAP | Very Volatile Hazardous Air Pollutant |
| TOFA | Tall Oil Fatty Acids |
| PATRAM | Packaging And Transportation Of Radioactive Material |
| AECB | Acute Exacerbations Of Chronic Bronchitis |
| LSASV | Linear Sweep Anodic Stripping Voltammetry |
| SIDMS | Speciated Isotope Dilution Mass Spectrometry |
| NEC | National Electrical Code |