| Acronym | Meaning |
| SAAP | Spin Adapted Antisymmetrized Product (in MC-SCF Theory) |
| CWFMS | Combined Wavelength And Frequency Modulation Spectroscopy |
| GO | Gaussian Overlap (approxn. In Mol. Calcns.) |
| EFTIR | Emission Fourier Transform Infrared Spectroscopy |
| AL:PE | Acidification Of Mountain Lakes: Paleolimnol. And Ecol. |
| WRC | Water Resources Council |
| EBPVD | Electron Beam Physical Vapor Deposition |
| MARIA | Methods For Assessing The Radiological Impact Of Accidents |
| ATRA | All-trans-retinoic Acid |
| PDPA | Phase Doppler Particle Analyzer |