| Acronym | Meaning |
| AAPCO | Association For American Pesticide Control Officials |
| PBC | Primary Biliary Cirrhosis |
| MCLED | Microcavity Light-emitting Diode |
| IISRP | International Institute Of Synthetic Rubber Producers |
| PTNO | Perturbation Theory Natural Orbital |
| QAFM | Quantum Antiferromagnetic Heisenberg Model |
| ACT | Activated Complex Theory |
| AHR | Airway Hyperresponsiveness |
| IDTIMS | Isotope Diln. Thermal Ionization Mass Spectrometry |
| SUMER | Solar UV Measurements Of Emitted Radiation |