| Acronym | Meaning |
| ZAA | Zeeman Atomic Absorption |
| EOLM | Electro-optical Light Modulation |
| ETF | Extended Thomas-Fermi (model) |
| VPDB | Vienna Peedee Belemnite |
| PERV | Porcine Endogenous Retrovirus |
| XFH | X-ray Fluorescence Holography |
| AWCC | Active Well Coincidence Counter |
| RTF | Replenished Tapped And Fractionated (magma) |
| HWDMS | Hazardous Waste Data Management System |
| ATES | Aquifer Thermal Energy Storage |