| Acronym | Meaning |
| A/CNK | [Al2O3/(CaO + Na2O + K2O)] (Shand's Index) |
| VIF | Valency-point Interaction Formula (in Graph Theory With At. And Mol. Orbitals) |
| HSAB | Hard And Soft Acids And Bases |
| GABA | Gamma-aminobutyric Acid |
| ICP-ROA | Incident Circular Polarization Raman Optical Activity |
| ACIOSA | Adiabatic Capture Infinite Order Sudden Approximation |
| SCAS | Stability And Command Augmentation System |
| PMPO | Perturbed Morse Pekeris Oscillator (model Potential) |
| MEUF | Micellar Enhanced Ultrafiltration |
| QLCPMET | Quasilinearized Coupled-pair-many-electron Theory |