| Acronym | Meaning |
| SPIRIT | Single Photon Ionization Resonance Ionization To Threshold |
| ASHI | American Society Of Histocompatibility And Immunogenetics |
| MON | Motor (method) Octane No. |
| SFG | Sum Frequency Generation Spectroscopy |
| JWF | Jastrow Wave Function |
| MBRSPT | Many-body Rayleigh-Schroedinger Perturbation Theory |
| CESAR | Chemically Enhanced Solubilization For Aquifer Remediation |
| BTU | British Thermal Unit |
| OTE | Optically Transparent Electrode |
| LLT | Laser Luminescence Tomography |