| Acronym | Meaning |
| UASBR | Upflow Anaerobic Sludge Blanket Reactor |
| LCW | Liquid Core Waveguide |
| NASP | National Aerospace Plane |
| SERI | Solar Energy Research Institute |
| PI3K | Phosphatidylinositol 3-kinase |
| FPI | Fourier Path Integral |
| GATE | GARP Atlantic Tropical Experiment |
| APR | Air-Purifying Respirator |
| BIXE | Bombardment-induced X-ray Emission |
| GFP | Green Fluorescent Protein |