| Acronym | Meaning |
| QCA | Quasicrystalline Approximation |
| AMA | American Medical Association |
| GLOBE | Global Learning And Observations To Benefit The Environment |
| IAG | International Association Of Geodesy |
| GWP | Gaussian Wave Packet |
| MBIE | Mixed-bed Ion Exchange |
| PPD | Purified Protein Derivative |
| LHP-RHF | Longuet-Higgins-Pople Restricted Hartree-Fock Method |
| QLCPMET | Quasilinearized Coupled-pair-many-electron Theory |
| PIPS | Passivated Implanted Planar Silicon |