| Acronym | Meaning |
| PDA | Photodiode Array |
| CSR | Class Switch Recombination |
| SSF | Space Station Freedom |
| ATDC | After Top Dead Center (gasoline And Diesel Engine Timing) |
| HESI | Health And Environmental Sciences Institute |
| SNIFTIRS | Subtractively Normalized Interfacial Fourier Transform IR Spectroscopy |
| CCSP | Constant Current Stripping Potentiometry |
| ICP-ROA | Incident Circular Polarization Raman Optical Activity |
| IRMPD | Infrared Multiphoton Dissociation |
| NAFTA | North American Free Trade Agreement |