| Acronym | Meaning |
| ADO | Average Dipole Orientation |
| NRMA | Nonresonant Microwave Absorption |
| PPBA | Plane-wave Plane-wave Born Approximation |
| WTE | Waste-To-Energy Facility |
| GSI | Gonadosomatic Index |
| ICTV | International Committee On The Taxonomy Of Viruses |
| RFEC | Remote Field Eddy Current |
| RCHF | Relaxed-core Hartree-Fock (approxn. In Calcns. On Mol. K-shell Excitation Spectra) |
| VUV | Vacuum Ultraviolet |
| HI | Hydrogen Index |