| Acronym | Meaning |
| JCBN | IUPAC-IUB Joint Commission On Biochemical Nomenclature |
| QPA | Quantitative Phase Analysis |
| QBO | Quantitative Basis Orbital (an MO Or AO) |
| IEM | Interstitial Electron Model |
| ICMR | Indian Council Of Medical Research |
| EIA | Environmental Impact Assessment |
| CMO | Canonical Molecular Orbital |
| ZASA | Zinc 5-aminosalicylate |
| EDFA | Er-doped Fiber Amplifier |
| AMS | American Mathematical Society |