| Acronym | Meaning |
| LREE | Light Rare Earth Element(s) |
| LEAFS | Laser-Excited Atomic Fluorescence Spectrometry |
| CEIA | Capillary Electrophoresis Immunoassay |
| ARAC | Atmospheric Release Advisory Capability |
| GFCI | Ground Fault Circuit Interrupter |
| GDC | Glow Discharge Cleaning |
| ODC | Orientation Distribution Coeffs. |
| HFET | High Field Effect Transistor |
| APOMA | American Precision Optics Manufacturers Association |
| SOMO | Semioccupied Molecular Orbital |