| Acronym | Meaning |
| SNR | Supernova Remnant |
| PTIS | Photothermal Ionization Spectroscopy |
| HFET | Highway Fuel Economy Test |
| CMSM | Continuum Multiple-scattering Model |
| GEM | Gene Expression Microarray |
| SESAM | Semiconductor Saturable Absorber Mirror |
| SCAUA | Semiclassical Approxn. United Atom |
| SQC | Statistical Quality Control |
| SAE | Society Of Automotive Engineers |
| IRMPD | Infrared Multiphoton Dissociation |