| Acronym | Meaning |
| ESD | Emission Standards Division |
| GWB | Gopinathan-Whitehead-Bogdanovic (Fermi-hole Parameters) |
| MRA | Magnetic Resonance Angiography |
| AM | Arithmetic Mean |
| NETI | National Enforcement Training Institute |
| NITS | National Institute Of Technology And Standards |
| ASO | Atomic Spin Orbital |
| ADA | N-(2-acetamido) Iminodiacetic Acid |
| FAGS | Federation Of Astronomical And Geophysical Services |
| LPIC | Low Pressure Ion Chromatography |