| Acronym | Meaning |
| EMTB | Effective-medium Tight-binding |
| DDE | Dichlorodiphenyldichloroethylene |
| CRM | Certified Reference Material |
| PSA | Prostate-specific Antigen |
| CN | Condensation Nucleus |
| RAPID | Ruggedized Advanced Pathogen Identification Device |
| NIRIS | Near-infrared Imaging Spectroscopy |
| MUDPIT | Multidimensional Protein Identification Technology |
| PDGF | Platelet-derived Growth Factor |
| ETO | Exponential-type Orbital |