| Acronym | Meaning |
| GDR | Giant Dipole Resonance |
| OCEE | Overlap Corrected Electronegativity Equalization |
| STB | Semiempirical Tight Binding |
| HLB | Hydrophilic-lipophilic Balance (of Surfactants) |
| MAPK | Mitogen-activated Protein Kinase |
| APC | Antigen Presenting Cell |
| DEMA | Diesel Engine Manufacturers Association |
| DARC | Dielectric Antireflection Coating |
| CCI | Contracted Configuration Interaction |
| OPHF | Orbital-polarized Hartree-Fock |