| Acronym | Meaning |
| IWIC | International Waste Identification Code |
| OSF | Odor Safety Factor |
| EPZ | Emergency Planning Zone |
| UMINDO | Spin-unrestricted Modified Intermediate Neglect Of Differential Overlap |
| DPN | Dip-pen Nanolithography |
| CEPM | Coupled Electron Pair Method |
| SMBC | Simulated Moving Bed Chromatography |
| TBBA | Tightly-bound-on-the-bond Approxn. (band Structure Crystal) |
| MLC | Mixed Lymphocyte Culture |
| SPE | Solid Phase Electrolyte |