| Acronym | Meaning |
| SRBC | Sheep Red Blood Cell |
| AS | Activated Sludge |
| IRCWD | International Reference Center For Waste Disposal |
| BPO | Benzoyl Peroxide |
| BI | Bond Increment (method In Calcns. On Large Molecules) |
| HDF | Hubble Deep Field |
| FAFS | Flame Atomic Fluorescence Spectroscopy |
| PRP | Proline-rich Protein |
| ULDPE | Ultra Low Density Polyethylene |
| HREM | High-resolution Electron Microscopy |