| Acronym | Meaning |
| LOPC | Laser Optical Particle Counter |
| TOGA | Tropical Oceans And Global Atmosphere |
| ACIT | Adoptive Chemoimmunotherapy |
| TC | Toxicity Characteristic |
| TPPM | Two-pulse Phase Modulation |
| LEU | Low Enrichment Uranium |
| PAB | Pollutant Assessment Branch (US EPA) |
| QC | Quality Control |
| QDO | Quantum-defect Orbital (theory) |
| STOL | Short Take-Off And Landing |