| Acronym | Meaning |
| SSE | Spinless Salpeter Equation |
| RTPCR | Reverse Transcriptase Polymerase Chain Reaction |
| HARM | Hazardous Atmospheric Release Model |
| PFGE | Pulsed-field Gel Electrophoresis |
| BID | Brinell Indentation Diameter |
| AAR | Association Of American Railroads |
| SC-HL | Self-consistent Heitler-London |
| BPV | Bovine Papillomavirus |
| LMHEMT | Lattice Matched High Electron Mobility Transistor |
| UHF-AA | Unrestricted Hartree-Fock (with Spin) Annihilation |