| Acronym | Meaning |
| LCGTO-MCP-LS | Linear Combination Of Gaussian-type Orbitals-model Core Potential-local Spin Density |
| FIM | Forced Impulse Method (in Atom Ion-impact Ionization) |
| A/C | Activated Carbon |
| CCSD-UED | CCSD-unrelaxed Energy Derivative |
| MINDAP | Microwave-induced Nitrogen Discharge At Atmospheric Pressure |
| 3A | Alumina Aluminide Alloys |
| IMAGE | International Monitor For Auroral Geomagnetic Effects |
| LTK | Laser Thermal Keratoplasty |
| JEIDA | Japan Electronic Industry Development Association |
| OSF | Odor Safety Factor |