| Acronym | Meaning |
| IRRAS | Integrated Reliability And Risk Analysis System |
| HSCCC | High-speed Counter-current Chromatography |
| BLM | Bilayer Lipid Membrane |
| IAS | Isobaric Analog States |
| EHAP | Extremely Hazardous Air Pollutant |
| PLOT | Porous Layer Open Tubular (capillary Column For Gas Chromatography) |
| NSTX | National Spherical Torus Experiment |
| ESSP | Earth Systems Science Pathfinder |
| WAXS | Wide-angle X-ray Scattering |
| QCPE | Quantum Chemistry Program Exchange |