| Acronym | Meaning |
| EFRTS | External-floating-roof Tanks |
| AGP | Antisymmetrized Geminal Product (wave Function) |
| CABG | Coronary Artery Bypass Graft |
| RCHF | Relaxed-core Hartree-Fock (approxn. In Calcns. On Mol. K-shell Excitation Spectra) |
| ZRL | Zero Risk Level |
| PXD | Powder X-ray Diffraction |
| HEL | Hen Egg Lysozyme |
| SCRF | Self-consistent Reaction Field |
| FI | Fouling Index |
| BHSIP | Bottom-hole Shut-in Pressure |