| Acronym | Meaning |
| DDM | Denuder Difference Method |
| CAASE | Computer Assisted Area Source Emissions |
| MCRHF | Multiconfigurational Relativistic Hartree-Fock |
| PCS | Permit Compliance System |
| NAPIM | National Association Of Printing Ink Manufacturers (US) |
| SKY | Spectral Karyotyping |
| ACME | Aquatic Cycling Of Mercury In The Everglades |
| HUVEC | Human Umbilical Vein Endothelial Cell |
| HTSUS | Harmonized Tariff System U.S. |
| D5W | Dextrose 5% In Water |