| Acronym | Meaning |
| ACR | Advanced Cracking Reactor (for Ethylene Production From Petroleum) |
| RS-LMTO-ASA | Real Space-linear Combination Of Muffin-tin Orbitals-atomic Sphere Approxn. |
| MDI | Methylene Di-p-phenylene Isocyanate |
| LDPEX | Cross-linked |
| MI | Mitotic Index |
| ISPGAA | In Situ Prompt Gamma-ray Activation Analysis |
| MVEG | Motor Vehicle Emissions Group |
| MLVA | Multiple-locus Variable-number Tandem Repeat Analysispar |
| UKB | Unrestricted Kinetic Balance (in Calcns. Of Wave Functions And Energies) |
| CLC | Chloride Channel |