| Acronym | Meaning |
| ALAD | Delta-aminolevulinic Acid Dehydratase (lead Poisoning Indicator) |
| HRSG | Heat Recovery Steam Generator |
| CDSI | Committee On The Dissemination Of Scientific Information |
| AQSA | Anthraquinone-2-sulfonic Acid |
| OVOC | Other Volatile Organic Compound |
| ASO | Atomic Spin Orbital |
| ADIS | Advanced Drilling Information System [petroleum] |
| DIOZ | Diisooctyl Azelate |
| SUVR | Solar Ultraviolet Radiation |
| APUMPN | Approximately Projected Unrestricted Moeller-Plesset Nth-order |