| Acronym | Meaning |
| PCR | Photo-Conductive Resonance |
| HMPSA | Hot-melt Pressure-sensitive Adhesive |
| OVFF | Orbital Valence Force Field |
| SCSAG | Small-curvature Semiclassical Adiabatic Ground-state (tunneling Approxn.) |
| RFL | Resorcinol-formaldehyde Latex [dip Coating] |
| IPA | Inverted Perturbation Approach (in Mol. Potential-energy Curves Calcn.) |
| EFG GTO | Electric Field Gradient Gaussian-type Orbital |
| GRF | Growth Hormone Releasing Factor |
| NTI | Negative Thermal Ionization (for Mass Spectrometry) |
| GSJ | Geological Survey Of Japan |