| Acronym | Meaning |
| ERC | Emissions Reduction Credit |
| ACE | Angiotensin-converting Enzyme |
| PERL | Passivated Emitter And Rear Locally Diffused (solar Cells) |
| CVOC | Chlorinated Volatile Organic Compound |
| SPEAR | Stanford Positron Electron Accelerating Ring |
| LPAS | Long Pathlength Absorbance Spectroscopy |
| PDRM | Post-depositional Remanent Magnetization |
| DBE | Distorted-wave Born Exchange |
| CMP | Cartilage Matrix Protein |
| APU | Acid Purification Unit (acid Recovery System) |