| Acronym | Meaning |
| PTEN | Phosphatase And Tensin Homolog (mutated In Multiple Advanced Cancers 1) |
| MCCP | Mountain Cloud Chemistry Program |
| TSS | Total Suspended Solids |
| QTST | Quantum Transition State Theory |
| QLGM | Quantum Lattice Gas Model (in Helium Superfluid Transition Temperature In Zeolite Pores) |
| AUSST | Automatic Synthesis Of Symptom Tree Model |
| ESC | Environmental Stress Cracking |
| UFP | Ultrafine Particles |
| MSC | Multiplicative Scatter Correction |
| ARA | Aggregate Risk Analysis |