| Acronym | Meaning |
| GAIIA | Global Alliance Of Information Industry Associations |
| LEP | Light Emitting Polymer |
| PCI | Positive-ion Chemical Ionization (mass Spectrometry) |
| CBOX | Coulomb-Born With No Exchange |
| BBGKY | Bogoliubov-Born-Green-Kirkwood-Yvon Equations (in Kinetic Theory Of Fluids) |
| MESFET | Metal Semiconductor Field-effect Transistor |
| QPT | Quasiparticle Tunneling |
| NSSN | National Standards Systems Network |
| PIES | Partial Integration Exterior Scaling (in Calcns. On Resonance Positions And Lifetimes |
| STB | Semiempirical Tight Binding |