| Acronym | Meaning |
| LD-KGC | Linz-Donawitz-Kawasaki Gas Control (steel Converter Furnaces) |
| HPAE | High Performance Anion Exchange |
| SPPD | Spin Polarized Photoelectron Diffraction |
| RMS | Root Mean Square |
| MBESO | Maximum Bond Energy Symmetry Orbital |
| OS | Overlapping Spheres (method) |
| NLLAP | National Lead Laboratory Accreditation Program |
| DIGIT | Deep Infrared Galaxy Imaging Telescope |
| CS | Coupled-states (or Centrifugal Sudden) Approximation |
| DMFC | Direct Methanol Fuel Cell |