| Acronym | Meaning |
| CS | Centrifugal Sudden (approximation) |
| EDZ | Emission Density Zoning |
| GPD | Gallons Per Day |
| SOC | Semivolatile Organic Compound |
| RPA | Random Phase Approximation |
| AOMA | American Occupational Medical Association |
| TRMM | Tropical Rainfall Measuring Mission |
| BPC | Blood Platelet Count |
| TBW | Total Body Weight |
| RFCC | Residue Fluid Catalytic Cracking |