| Acronym | Meaning |
| EFTC | European Fluorocarbon Technical Committee |
| RCR | Recrystallization Controlled Rolling |
| LII | Liquid Injection Incinerator |
| BLMO | Best Limited Basis Molecular Orbital |
| AAR | Association Of American Railroads |
| IP | Inhalable Particle |
| STFT | Short Time Fourier Transform |
| NIPALS | Nonlinear Iterative Partial Least Squares |
| UCAS-SCF | Unrestricted Complete Active Space Self-consistent Field |
| HSCR | Hirschsprung Disease |