| Acronym | Meaning |
| UNS | Unified Numbering System For Metals And Alloys |
| IOS | Infinite Order Sudden Approximation |
| CTEM | Conventional Transmission Electron Microscopy |
| CHF | Coulomb Hartree-Fock |
| CS | Centrifugal Sudden (approximation) |
| ROP | Ring-opening Polymerization |
| FBEM | Fixed Beam Electron Microscopy |
| MODS | Magneto-Optical Difference Spectroscopy |
| CDO | Controlled Decomposition/oxidation |
| MLCFA | Maximum Likelihood Common Factor Analysis |