| Acronym | Meaning |
| AHR | Airway Hyperresponsiveness |
| PDS | Photothermal Deflection Spectroscopy |
| IPCS | International Program On Chemical Safety |
| LASCS | Light-activated Silicon Controlled Switch |
| OCEPA | Office Of Communications |
| FECO | Fringes Of Equal Chromatic Order |
| CAAMP | Canadian Acid Aerosol Measurement Program |
| HLRW | High Level Radioactive Waste |
| LWR | Light-water Reactor |
| IIA | Information Industry Association |