| Acronym | Meaning |
| FCM | Finite-cluster Model (for Calcns. On Electromigration) |
| BID | Background Information Document |
| LTP | Lipid-transfer Protein |
| SPF | Sun Protection Factor |
| AQMD | Air Quality Management District |
| SCM | Scanning Capacitance Microscopy |
| ACIS | Advanced CCD Imaging Spectrometer |
| MUCS | Minimum-uncertainty Coherent States (wave Functions) |
| HFJ | Hartree-Fock-Jucys (in Electron-correlation Corrections Calcn.) |
| XEAPS | X-ray Excited Electron Appearance Potential Spectroscopy |