| Acronym | Meaning |
| ORI | Octane Requirement Increase |
| HPCN | High-Performance Computing And Networking |
| AFDM | Ash Free Dry Mass |
| ASCII | American Standard Code For Information Interchange |
| SIC | Std. Industrial Code |
| MACSP | Marine Analytical Chemistry Standards Program |
| RVCM | Residual Vinyl Chloride Monomer |
| PTK | Protein Tyrosine Kinase |
| NITFS | National Imagery Transmission Format Standard |
| GREAT-ER | Geog.-referenced Regional Exposure Assessment Tools For European Rivers |