| Acronym | Meaning |
| AASHO | American Association Of State Highway Officials |
| IRI | International Reference Ionosphere |
| NC-IUBMB | Nomenclature Committee Of The International Union Of Biochemistry And Molecular Biology |
| NMMAPS II | The National Morbidity |
| LVP | Left Ventricular Pressure |
| GASP | Gamma Astronomy At The South Pole |
| GLC | Ground Level Concentration |
| CMDL | Climate Monitoring And Diagnostics Laboratory (NOAA Boulder |
| ROFA | Rotating Over Fire Air (boiler Firing) |
| CCR | Close-coupled Representation |