| Acronym | Meaning |
| ACR | Advanced Cracking Reactor (for Ethylene Production From Petroleum) |
| CIGARS | Calibrated Infrared Ground/air Radiometric Spectrometer |
| INPI | The French National Institute Of Industrial Property |
| IC | Ion Chromatography |
| OSPARCOM | Oslo And Paris Commission [Environmental Regulations For The European Community] |
| PDFT | Perturbation Density-functional Theory |
| BIRD | Blackbody Infrared Radiative Dissociation |
| AMP | Adenosine 5'-monophosphate |
| IPVD | Ionized Physical Vapor Deposition |
| BNR | Biological Nutrient Removal |