| Acronym | Meaning |
| UBM | Under Bump Metallurgy |
| PCM | Phase Contrast Microscopy |
| ECAP | Energy-compensated Atom Probe |
| ESES | Environmental Sampling Expert System |
| BI | Bond Increment (method In Calcns. On Large Molecules) |
| PLM | Polarized-light Microscopy |
| PFOA | Perfluorooctanoic Acid |
| AE | Acoustic Emission |
| CSDW | Centrifugal Sudden (or Coupled States) Distorted Wave (methodfor Reactive Mol. Collisions) |
| BSM | Breathing Shell Model |